FTCE Middle Grades Science 5-9 Exam 406 Questions with Verified Answers,100% CORRECT

FTCE Middle Grades Science 5-9 Exam 406 Questions with Verified Answers Which of the properties listed below is a characteristic of a liquid but not of a gas? A. It has the ability to flow. B. It maintains its volume in an open container. C. Its molecules are constantly in motion. D. Its volume varies depending on temperature. - CORRECT ANSWER B A 0.100 m3 chamber is filled with oxygen gas at standard conditions (101 kPa at 273 k). Assuming ideal conditions and behavior, what will be the pressure of the gas in the chamber after it is heated to 819 k? A. 34 kPa B. 51 kPa C. 202 kPa D. 303 kPa - CORRECT ANSWER D In 1898, J.J. Thomson provided the first hard evidence for the existence of subatomic particles in the atom by using a cathode ray tube to discover the A. proton. B. neutron. C. electron. D. nucleus. - CORRECT ANSWER C If all of the atoms in a substance have the same atomic number, the substance is a(an) A. compound. B. element. C. mixture. D. alloy. - CORRECT ANSWER B The balanced chemical equation for the formation of iron (III) oxide is A. Fe + O2 -> FeO2. B. 4Fe + 3O2 -> 2Fe2O3. C. 3Fe + O2 -> Fe3O2. D. Fe + O -> FeO. - CORRECT ANSWER B Small molecules that contain H bonded to O have higher boiling points than similar molecules in which H is bonded to S. Why does this change occur? A. The H to O bond is nonpolar. B. The H to S bond is more polar than the H to O bond. C. The H to O bond is more polar than the H to S bond. D. The H to S bond is nonpolar. - CORRECT ANSWER C A + B -> AB What type of reaction is given above? A. combination B. decomposition C. double displacement D. single displacement - CORRECT ANSWER A According to Hooke's Law, the relationship between the elastic force and the distance of stretch for an elastic material is A. inversely proportional. B. directly proportional. C. exponential. D. power squared. - CORRECT ANSWER B A ball rolls off a horizontal table and hits the floor at a faster vertical speed than when it leaves the table. This is an example of which law of objects in motion? A. Newton's 1st law B. Newton's 2nd law C. Kepler's 1st law D. Kepler's 2nd law - CORRECT ANSWER B The pitch of a car's horn changes as the car approaches. This is an example of A. constructive interference. B. destructive interference. C. diffraction. D. the Doppler effect. - CORRECT ANSWER D Two identical objects with identical electrostatic charges will A. repel one another. B. attract one another. C. have no effect on each other. D. emit a spark. - CORRECT ANSWER A The device that converts electric energy to mechanical energy by the use of magnetic forces is a (an) A. generator. B. transformer. C. motor. D. rectifier. - CORRECT ANSWER C Which phase change releases energy? A. melting B. evaporation C. condensation D. sublimation - CORRECT ANSWER C Which of the following contains the greatest amount of thermal energy? A. burning candle B. cup of coffee C. oak tree D. lake - CORRECT ANSWER D The input electrical energy of an overhead projector results in light emission, heat emission, and mechanical motion of the fan. This is a demonstration of A. conservation of energy. B. excess input energy. C. decrease in entropy. D. total loss of energy. - CORRECT ANSWER A The splitting of the nucleus of U-235 into two or more fragments is called A. alpha decay. B. beta decay. C. fission. D. fusion. - CORRECT ANSWER C Which type of radiation has the lowest energy? A. x-rays B. visible light C. infrared D. radio - CORRECT ANSWER D A security mirror located in the back corner of a convenience store to enable a view of the entire store uses a A. convex mirror. B. concave mirror. C. flat mirror. D. parabolic mirror. - CORRECT ANSWER A What is the power drawn by a 120-volt microwave oven that is rated for 15 amps? A. 0.125 joules B. 8.0 watts C. 1800 watts D. 135 joules - CORRECT ANSWER C According to the theory of plate tectonics, the energy that drives crustal plate movement originates in A. earthquakes. B. lithosphere fluidity. C. seafloor spreading. D. mantle convection. - CORRECT ANSWER D The time known as the "coal age" occurred during which geologic era? A. Precambrian B. Cenozoic C. Mesozoic D. Paleozoic - CORRECT ANSWER D Identify the best method of determining the age of a single rock sample that contains no fossils. A. radioactive dating B. examination of mineral content C. application of the law of superposition D. crystal analysis - CORRECT ANSWER A Which of the following surface ocean currents is known for being warm, fast, and narrow? A. California Current B. Canary Current C. West Wind Drift D. Gulf Stream - CORRECT ANSWER D How do oceanic ridges differ from trenches? A. Ridges include extremely deep ocean structures; trenches refer to shallow ocean structures. B. Ridges mark divergent plate boundaries; trenches mark convergent plate boundaries. C. Ridges are referred to as the "shoulder" of the continents; trenches are found in the middle of the oceans. D. Ridges are the slopes from the continental shelf to the abyssal plain; trenches are where freshwater meets seawater. - CORRECT ANSWER B The average salinity level of seawater in parts per thousand is closest to A. 10. B. 15. C. 35. D. 50. - CORRECT ANSWER C Rocks that have cooled from the molten state are called A. igneous rocks. B. sedimentary rocks. C. metamorphic rocks. D. precipitated rocks - CORRECT ANSWER A Which list of minerals is arranged in order from lowest to highest, using the Mohs hardness scale? A. quartz, diamond, talc, calcite B. diamond, quartz, calcite, talc C. talc, calcite, quartz, diamond D. calcite, quartz, talc, diamond - CORRECT ANSWER C How does the stratosphere differ from the troposphere? A. Atmospheric pressure increases with height in the stratosphere. B. The stratosphere is in contact with Earth's surface. C. Most day-to-day weather originates in the stratosphere. D. Temperatures increase with height in the stratosphere. - CORRECT ANSWER D What major cloud formation is associated with warm, moist, rapidly rising air? A. cirrocumulus B. cirrostratus C. cumulonimbus D. nimbostratus - CORRECT ANSWER C Limestone that is weathered by water results in the formation of land surface features known as A. karst topography. B. dunes. C. loess deposits. D. crevasses. - CORRECT ANSWER A Worldwide problems of global warming, acid rain, and photochemical smog are mainly the result of A. releasing chlorofluorocarbons. B. overcultivating land. C. burning fossil fuels. D. dumping toxic wastes. - CORRECT ANSWER C Why does Australia experience winter during the months of June, July, and August? A. The Earth's orbital distance is farther from the Sun. B. The Earth's Southern hemisphere is tilting on its axis away from the Sun. C. The Earth's Southern hemisphere is tilting on its axis toward the Sun. D. The Earth's orbital distance is closer to the Sun. - CORRECT ANSWER B An astronomer would use a spectrometer to look at a star because the spectrometer A. increases the magnification of the telescope. B. provides detailed information on a star's mass. C. helps analyze a star's temperature and composition. D. increases the light gathering ability of a telescope - CORRECT ANSWER C An astronomer viewing a distant star notices the star's spectral lines are shifted toward longer wavelengths. This indicates the star is A. moving toward the Earth. B. very old. C. very young. D. moving away from the Earth. - CORRECT ANSWER D A component of the solar system that consists of a nucleus, a dust tail, and an ion tail is a(an) A. asteroid. B. comet. C. meteor. D. meteorite. - CORRECT ANSWER B What is the name of the cloud of gas and dust that, in theory, condenses to form a planetary system? A. galaxy B. constellation C. nebula D. comet - CORRECT ANSWER C Saltwater surged into a pond, causing the Elodea population to decrease. What process contributed to the decrease in the population of these plants? A. Saltwater is hypertonic, so water diffused into the plant cells. B. Saltwater is hypertonic, so water diffused out of the plant cells. C. Saltwater is hypotonic, so water diffused out of the plant cells. D. Saltwater is hypotonic, so water diffused into the plant cells. - CORRECT ANSWER B Which of the following is a distinguishing characteristic of prokaryotes? A. no nucleus B. no cell wall C. cell organelles D. mitochondria - CORRECT ANSWER A A muscle cell contains a large number of which organelles? A. lysosomes B. endoplasmic reticula C. nuclei D. mitochondria - CORRECT ANSWER D In humans, nondisjunction during meiosis may result in which of the following irregularities? A. cystic fibrosis B. pleiotropy C. sickle cell D. Down syndrome - CORRECT ANSWER D What is the inheritance pattern typified by a 9:3:3:1 phenotype ratio in the F-2 generation? A. complete dominance in a dihybrid cross B. complete dominance in a monohybrid cross C. incomplete dominance in a monohybrid cross D. incomplete dominance in a dihybrid cross - CORRECT ANSWER A Sickle-cell disease is a recessive genetic condition. Which genotype indicates that an individual has this disorder? A. AA B. Aa C. AB D. aa - CORRECT ANSWER D Which sequence of events precedes protein synthesis? A. DNA replicates RNA, which goes to the lysosomes. B. RNA translates DNA, which goes to the lysosomes. C. DNA transcribes RNA, which goes to the ribosomes. D. RNA synthesizes DNA, which goes to the ribosomes. - CORRECT ANSWER C A new aquatic invertebrate has been found. Its body is bilaterally symmetrical and flat, and it has the ability to regenerate. To what phylum does it belong? A. Porifera B. Platyhelminthes C. Nematoda D. Annelida - CORRECT ANSWER B What characteristic is used in the classification of protozoans? A. their mode of locomotion B. their manner of obtaining food C. their method of reproduction D. the toxicity of their waste - CORRECT ANSWER A Which of the following organelles is present in plant cells but not in animal cells? A. ribosome B. Golgi apparatus C. chloroplast D. endoplasmic reticulum - CORRECT ANSWER C The endodermis of a mature primary root plays a role in A. absorbing water and minerals from the soil. B. regulating transport of water and minerals into vascular tissue. C. storing water, minerals, or nutrients for the plant. D. supporting the root structure of the plant. - CORRECT ANSWER B Which of the following is a step in the sexual reproduction of plants? A. rhizome production B. spore production C. bulb production D. pollen production - CORRECT ANSWER D In human digestion, stomach enzymes and acids break proteins into A. vitamins. B. sugars. C. peptides. D. pepsin. - CORRECT ANSWER C Which of the following is part of the human endocrine system? A. pancreas B. larynx C. pharynx D. urethra - CORRECT ANSWER A Which kind of behavior is illustrated in chimpanzees by their ability to use tools? A. instinctive B. learned C. social D. territorial - CORRECT ANSWER B Which of the following is part of the nitrogen cycle? A. Bacteria fix nitrogen from the air. B. Nitrogen is produced by respiration. C. Nitrogen is given off during photosynthesis. D. Green plants use atmospheric nitrogen for food. - CORRECT ANSWER A Using hydrogen fuel cells instead of gasoline engines in cars would cause a(an) A. decrease in carbon dioxide emission. B. increase in chloroflourocarbon emissions. C. increase in the amount of atmospheric ozone. D. decrease in radioactivity in the atmosphere. - CORRECT ANSWER A Which of the following is associated with a desert biome? A. deciduous plant life B. karst topography C. shade-tolerant plant life D. wind erosion - CORRECT ANSWER D Which of the following is most likely to cause a bad odor and surface scum on a natural pond? A. blue-green algae B. nitrogen-fixing bacteria C. yeast D. bracket fungi - CORRECT ANSWER A As a result of homeostasis, a marathon runner experiences which of the following physical effects as the body works to regulate its temperature? A. increasing blood pressure and motor reflexes B. increasing perspiration and breathing rates C. decreasing blood pressure and motor reflexes D. decreasing perspiration and breathing rates - CORRECT ANSWER B The ecological succession of Florida grassland communities to forest communities is interrupted by A. grazing mammals. B. insect infestation. C. periods of heavy rainfall. D. seasonal fires. - CORRECT ANSWER D A biology teacher plans to bring his pet snake to class and feed it a live mouse in front of the students. He will obtain a signed parental permission slip from each student. His planned demonstration is A. appropriate only if all parents have given their permission. B. valuable for students to observe because it shows predator-prey relationships. C. not permitted according to current State laws concerning the care and handling of vertebrates in schools. D. subject to approval by the school administration. - CORRECT ANSWER C At the end of a morning class, the teacher realizes that the laboratory equipment is spread throughout the room and not ready for use in the next class. To avoid this problem in the future, she should A. set up a materials management procedure in which one person from each group checks the equipment out and in. B. assign two students the responsibility of checking equipment out and in. C. do laboratory activities that require fewer pieces of equipment and give students time to put them away. D. have each class do the laboratory assignment on a different day to allow cleanup and preparation time. - CORRECT ANSWER A The appropriate alternative piece of equipment to replace a voltmeter is a(an) A. galvanometer. B. multimeter. C. odometer. D. ohm meter. - CORRECT ANSWER B The use of effective eye protective devices in school laboratories where potentially hazardous chemicals are used is A. determined by the local district. B. not required by State law. C. recommended by State law. D. required by State law. - CORRECT ANSWER D Which set of instruments is the best to use for calculating the density of an irregularly shaped object? A. beaker, balance, and thermometer B. metric ruler, balance, and thermometer C. graduated cylinder and balance D. metric ruler and balance - CORRECT ANSWER C In the design of a scientific experiment, the investigator considers all factors that may influence the results and then plans ways to keep all but one of these factors constant. In so doing, the investigator is engaging in the scientific process of A. collecting data. B. organizing data. C. forming hypotheses. D. controlling variables. - CORRECT ANSWER D A scientific investigation is set up to compare the cleaning ability of three different laundry detergents. Each of three identical pans containing 1 L of water at 75 °C has 100 g of a different laundry detergent dissolved in it. Three 5 cm x 5 cm squares, one of white cotton cloth, one of white wool, and one of white nylon, are each stained with 5 g of mustard. Each of these clothes is then soaked in a different pan for 1 hour, then allowed to dry. The results are recorded. What is the major flaw in this experiment? A. There is more than one independent variable. B. The variables are not correctly identified. C. All variables are held constant throughout the experiment. D. There is no dependent variable. - CORRECT ANSWER A Who is credited with creating the law showing that the relationship between current and voltage in a circuit depends upon the resistance in the circuit itself? A. Alessandro Volta B. James Watt C. Georg Ohm D. André-Marie Ampere - CORRECT ANSWER C A student group reported the mass of a sample of hydrochloric acid to be 4.5 g and the mass of a sample of calcium carbonate to be 6.8 g. Then the students mixed the two chemicals and reported the final mass of the product in the beaker to be 10.0 g. They reported that there was no significant difference between the reactants and the products, and that the difference was due to human error and the precision of the balance they used. The teacher should A. praise the students for realizing that instruments used in the laboratory have limitations and that it is not unreasonable for them to find differences due to those limitations. B. explain to the students how to use the balances again and ask the students to measure several objects while watching them to make sure that the students know how to use the balances. C. ask the students if they remembered to subtract the mass of the beaker when they found the mass of th - CORRECT ANSWER D A teacher wishes to use inquiry techniques to introduce the topic of osmosis. Which of the following activities would be the most appropriate? A. The teacher demonstrates osmosis while explaining the steps. B. The students design a laboratory activity exploring osmosis. C. The teacher assigns a reading passage on osmosis. D. The students complete a laboratory worksheet on osmosis. - CORRECT ANSWER B Which of the properties listed below is a characteristic of a gas but not of a liquid? A. It has the ability to flow. B. It assumes the shape and fills the volume of its container. C. Its molecules are constantly in motion. D. Its volume varies depending on temperature. - CORRECT ANSWER B A sealed container is filled with hydrogen gas at standard conditions (101 kPa at 273 k). Assuming ideal conditions and behavior, what will be the pressure of the gas in the chamber if it is heated to 546 k? A. 34 kPa B. 51 kPa C. 202 kPa D. 303 kPa - CORRECT ANSWER C In 1922, Neils Bohr developed an explanation of atomic structure that underlies regularities in the periodic table of elements dealing with the A. proton. B. neutron. C. electron. D. nucleus. - CORRECT ANSWER C A chemical bond consisting of atoms or ions of two or more different substances is a(an) A. compound. B. element. C. mixture. D. alloy. - CORRECT ANSWER A The balanced chemical equation for the formation of aluminum oxide is A. Al + O2 -> Al2O2. B. 4Al + 3O2 -> 2Al2O3. C. 3Al + O2 -> 2Al3O. D. Al + O2 -> AlO. - CORRECT ANSWER B H2O (water) is an example of a(an) A. polar bond. B. non-polar bond. C. ionic bond. D. non-covalent bond. - CORRECT ANSWER A AB + CD -> AD + BC What type of reaction is given above? A. combination B. decomposition C. double displacement D. single displacement - CORRECT ANSWER C According to Ohm's Law, the current running through a conductor is A. inversely proportional to the voltage. B. directly proportional to the resistance. C. a sum of the voltage and resistance. D. inversely proportional to the resistance. - CORRECT ANSWER D A rocket lifts off due to a reaction to gas propulsion. This is an example of which law of objects in motion? A. Newton's 1st law B. Newton's 2nd law C. Newton's 3rd law D. Kepler's 2nd law - CORRECT ANSWER C In a concert hall, sound waves are bent around objects. This is an example of A. constructive interference. B. destructive interference. C. diffraction. D. the Doppler effect. - CORRECT ANSWER C Two balloons with opposite electrostatic charges will A. repel one another. B. attract one another. C. have no effect on each other. D. emit a spark. - CORRECT ANSWER B The device that changes AC (alternating current) to DC (direct current) is a (an) A. generator. B. transformer. C. motor. D. rectifier. - CORRECT ANSWER D Which phase change indicates that a substance gains energy? A. freezing B. deposition C. condensation D. sublimation - CORRECT ANSWER D A great deal of solar radiation from the Sun enters the atmosphere and reaches Earth, while some energy is reflected back into space. This is a demonstration of A. conservation of energy. B. excess input energy. C. decrease in entropy. D. total loss of energy. - CORRECT ANSWER B The combining of atomic nuclei within the Sun that releases tremendous energy is called A. alpha decay. B. beta decay. C. fission. D. fusion. - CORRECT ANSWER D Which type of radiation has the highest energy? A. x-rays B. gamma rays C. infrared D. ultraviolet (UV) - CORRECT ANSWER B A mirror used to enlarge the image of a person using it to put on make up is A. convex. B. concave. C. flat. D. focused. - CORRECT ANSWER B What is the power drawn by a 240-volt oven that is rated for 40 amps? A. 0.167 joules B. 9,600 watts C. 6.0 watts D. 167 joules - CORRECT ANSWER B It is believed that this layer of the Earth is composed mainly of liquid iron. A. crust B. mantle C. outer core D. inner core - CORRECT ANSWER C The time known as the "age of dinosaurs" occurred during which geologic era? A. Precambrian B. Cenozoic C. Mesozoic D. Paleozoic - CORRECT ANSWER C Compared to the inner core, the Earth's outer core is believed to be A. less dense and cooler. B. less dense and hotter. C. more dense and hotter. D. more dense and cooler - CORRECT ANSWER A Which of the following surface ocean currents is known for being slow moving and cool? A. California Current B. Brazil Current C. South Pacific Equatorial Current D. Gulf Stream - CORRECT ANSWER A Where do oceanic ridges form? A. Ridges form along divergent plate boundaries. B. Ridges form along convergent plate boundaries. C. Ridges form where freshwater meets seawater. D. Ridges are the slopes from the continental shelf to the abyssal plain. - CORRECT ANSWER A Rocks or minerals formed in the openings of existing rocks during chemical reactions are called A. igneous rocks. B. sedimentary rocks. C. metamorphic rocks. D. precipitated rocks. - CORRECT ANSWER D Which mineral is lowest on the Mohs hardness scale? A. calcite B. talc C. diamond D. quartz - CORRECT ANSWER B Which layer of the atmosphere do most birds fly in? A. stratosphere B. mesosphere C. thermosphere D. troposphere - CORRECT ANSWER D What cloud formations are composed entirely of ice? A. cumulus B. cirrus C. cumulonimbus D. nimbostratus - CORRECT ANSWER B Surface features made up of silty soil that has been deposited by windstorms are known as A. karst topography. B. dunes. C. loess deposits. D. crevasses. - CORRECT ANSWER C The result of this activity has been shown to deplete ozone, allowing harmful UV rays to enter Earth's atmosphere. A. releasing chlorofluorocarbons B. overcultivating land C. burning fossil fuels D. dumping toxic wastes - CORRECT ANSWER A During fall in the Northern hemisphere, the Southern hemisphere experiences A. summer. B. winter. C. spring. D. fall. - CORRECT ANSWER C According to optical spectrometers, the hottest stars in the known universe are colored A. white. B. yellow. C. red. D. blue. - CORRECT ANSWER D An astronomer viewing a distant star notices the star's spectral lines are shifted toward shorter wavelengths. This indicates the star is A. moving toward the Earth. B. very old. C. very young. D. moving away from the Earth. - CORRECT ANSWER A A group of celestial objects found in a region located roughly between the orbits of Mars and Jupiter are A. asteroids. B. comets. C. meteors. D. Kuiper belt objects. - CORRECT ANSWER A What is the name of the huge, gravitationally bound system of stars, interstellar gas and dust, plasma, and (possibly) unseen dark matter? A. galaxy B. constellation C. nebula D. comet - CORRECT ANSWER A This causes the yearly seasonal changes on Earth to occur. A. a change in the Earth's distance from the Sun B. the gravitational pull of the Moon C. the tilt of the Earth on it's axis D. the apparent movement of the Sun from East to West - CORRECT ANSWER C The DNA of prokaryotes can be found in the A. flagellum. B. ribosomes. C. lysosomes. D. cytoplasm. - CORRECT ANSWER D Which cell organelle aids in cell division? A. golgi apparatus B. centriole C. vacuole D. lysosome - CORRECT ANSWER B In humans, the failure of chromosome pairs to separate properly is known as A. gene fusion B. chromosomal fusion C. gene dominance D. nondisjunction - CORRECT ANSWER D What is the inheritance pattern typified by a 1:2:1 phenotype ratio? A. complete dominance in a dihybrid cross B. complete dominance in a monohybrid cross C. incomplete dominance in a monohybrid cross D. incomplete dominance in a dihybrid cross - CORRECT ANSWER C A terrestrial invertebrate has been found. Its body is long, skinny, and segmented. To what phylum does it belong? A. Porifera B. Platyhelminthes C. Nematoda D. Annelida - CORRECT ANSWER D What classification of protozoan uses flagella as a means of locomotion? A. sarcodina B. mastigophora C. cnidospora D. sporozoa - CORRECT ANSWER B Which order of scientific classification does the animal Canis familiaris belong to? A. carnivora B. chordata C. animalia D. mammalia - CORRECT ANSWER A In flowers, pollen is normally found A. on the sepals. B. on the anthers. C. on the pistils. D. on the filaments. - CORRECT ANSWER B In human circulation, which of the following best describes the flow of blood from the heart? A. left ventricle, aorta, capillaries, vena cava, right atrium B. left atrium, pulmonary artery, vena cava, right ventricle, aorta C. aorta, capillaries, pulmonary artery, right ventricle, left ventricle D. left atrium, right atrium, capillaries, left ventricle, right ventricle - CORRECT ANSWER A In human respiration, oxygen and carbon dioxide gases are exchanged in the A. bronchus. B. diaphragm. C. alveoli. D. trachea - CORRECT ANSWER C Which of the following is not part of the human endocrine system? A. pancreas B. thyroid C. pharynx D. adrenal gland - CORRECT ANSWER C Which kind of behavior is illustrated in a spider's ability to spin a web? A. instinctive B. learned C. social D. territorial - CORRECT ANSWER A Which of the following are all part of the water cycle? A. condensation, evaporation, respiration, transpiration, and precipitation B. evaporation, condensation, precipitation, accumulation, transpiration C. condensation, precipitation, accumulation, transpiration, and nitrification D. evaporation, condensation, precipitation, ammonification, and accumulation - CORRECT ANSWER B Which of the following is not normally associated with a tundra biome? A. deciduous plant life B. cold climate C. short season of growth D. low biotic diversity - CORRECT ANSWER A Which of the following would most likely be found on the surface of a decaying log? A. blue-green algae B. segmented worms C. termites D. bracket fungi - CORRECT ANSWER D What does the release of insulin in the human body help it to do? A. stimulate oxygen absorption B. maintain homeostasis C. lower body temperature D. increase perspiration - CORRECT ANSWER B These organisms are found at the base of the Energy Pyramid. A. primary consumers B. tertiary consumers C. producers D. aquatic organisms - CORRECT ANSWER C A chemistry teacher plans to rearrange desks and have students react sulfuric acid with sugar in groups. He will obtain signed parental permission slips from students to participate in the activity. His planned activity is A. appropriate only if all parents have given their permission. B. inappropriate for students to perform regardless of parental permission. C. permissible so long as students are wearing appropriate eye protection. D. subject to approval by the science department head. - CORRECT ANSWER B The appropriate piece of equipment to measure current is a(an) A. galvanometer. B. volt meter. C. odometer. D. ohm meter. - CORRECT ANSWER A A solution with a pH of 11 is considered to be A. acidic B. neutral C. alkaline D. concentrated - CORRECT ANSWER C Who is generally credited as one of the main discoverers of electromagnetism? A. Alessandro Volta B. James Watt C. Georg Ohm D. André-Marie Ampere - CORRECT ANSWER D The teacher gives students a problem to investigate along with the materials, but not the method or expected outcomes. Students must design an experiment and figure out which data to collect and interpret to discover scientific relationships. This is an example of A. structured inquiry. B. guided inquiry. C. open inquiry. D. verification. - CORRECT ANSWER B Which of the properties listed below is a characteristic of a solid but not of a liquid? A. It has the ability to flow. B. Its molecules are constantly in motion. C. It retains a fixed shape and volume. D. Its volume varies depending on temperature. - CORRECT ANSWER C A sealed container is filled with a gas at standard temperature and pressure. Assuming ideal conditions and behavior, what will happen to the pressure of the gas in the chamber if the temperature is held constant and volume of the chamber is doubled? A. The pressure will be halved. B. The pressure will remain the same. C. The pressure will double. D. The pressure will be squared. - CORRECT ANSWER A In 1911, this scientist developed the "Planetary Model" of the atom in which electrons orbit the nucleus: A. John Dalton B. J.J. Thompson C. Ernest Rutherford D. Niels Bohr - CORRECT ANSWER C A composition of two or more substances that can be easily separated is a (an) A. compound. B. element. C. mixture. D. alloy. - CORRECT ANSWER C A balanced chemical equation for the formation of methane and water is A. CO2 + 4H2 -> CH4 + 2H2O. B. 4CO2 + 4H2 -> 4CH4 + H2O. C. CH4 + 2H2O -> CO2 + H2. D. CO + H -> CH4 + 2H2O. - CORRECT ANSWER A H2 (hydrogen gas) is an example of a(an) A. polar bond. B. non-polar bond. C. ionic bond. D. non-covalent bond. - CORRECT ANSWER B AB -> A + B What type of reaction is given above? A. combination B. decomposition C. double displacement D. single displacement - CORRECT ANSWER B According to Ohm's Law, A. to calculate the current in a circuit, add the voltage to the resistance. B. to calculate the current in a circuit, divide the voltage by the resistance. C. to calculate the current in a circuit, divide the voltage by the power. D. to calculate the current in a circuit, add the voltage to the power. - CORRECT ANSWER B A ball continues rolling in one direction on the floor until friction causes it to stop. This is an example of which law of objects in motion? A. Newton's 1st law B. Newton's 2nd law C. Newton's 3rd law D. Kepler's 2nd law - CORRECT ANSWER A Noise-canceling headphones can limit outside sounds through the use of A. constructive interference. B. destructive interference. C. diffraction. D. the Doppler effect. - CORRECT ANSWER B Two objects with neutral electrostatic charges will A. repel one another. B. attract one another. C. have no effect on each other. D. emit a spark. - CORRECT ANSWER C The device that changes chemical energy to mechanical and electrical energy is a (an) A. generator. B. transformer. C. motor. D. rectifier. - CORRECT ANSWER A Which phase change indicates that a substance releases energy? A. freezing B. evaporation C. melting D. sublimation - CORRECT ANSWER A The input electrical energy of an incandescent bulb results in the emission of light and heat. The heat emitted is a demonstration of A. conservation of energy. B. excess input energy. C. waste energy. D. total energy input. - CORRECT ANSWER C The splitting of atomic nuclei in a reactor's core is called A. alpha decay. B. beta decay. C. fission. D. fusion. - CORRECT ANSWER C Which type of radiation has the lowest energy? A. x-rays B. gamma rays C. infrared D. ultraviolet (UV) - CORRECT ANSWER C A mirror used to reflect light to a specific focal point is A. convex. B. semi-planer. C. flat. D. parabolic. - CORRECT ANSWER D What is the power drawn by a 120-volt electric dishwasher that is rated for 20 amps? A. 2400 watts B. 0.167 joules C. 6.0 watts D. 167 joules - CORRECT ANSWER A It is believed that this layer of the Earth is composed mainly of solid iron. A. crust B. mantle C. outer core D. inner core - CORRECT ANSWER D Which geologic era is known as the "age of recent life"? A. Precambrian B. Cenozoic C. Mesozoic D. Paleozoic - CORRECT ANSWER B Compared to the outer core, the Earth's inner core is believed to be A. less dense and cooler. B. less dense and hotter. C. more dense and hotter. D. more dense and cooler. - CORRECT ANSWER C Which of the following ocean currents is a cool current encircling Antarctica? A. California Current B. Brazil Current C. West Wind Drift D. Gulf Stream - CORRECT ANSWER C Where do oceanic trenches form? A. Trenches form along divergent plate boundaries. B. Trenches form along convergent plate boundaries. C. Trenches form where freshwater meets seawater. D. Trenches normally form near the middle of tectonic plates. - CORRECT ANSWER B Rocks that are formed by layers of deposited earth or other materials are called A. igneous rocks. B. sedimentary rocks. C. metamorphic rocks. D. precipitated rocks. - CORRECT ANSWER B Which mineral is highest on the Mohs hardness scale? A. calcite B. talc C. diamond D. quartz - CORRECT ANSWER C Which layer of the Earth's atmosphere is closest to space? A. exosphere B. mesosphere C. thermosphere D. troposphere - CORRECT ANSWER A What cloud formations usually cover the sky in a uniform gray? A. cumulus B. cirrus C. altocumulus D. stratus - CORRECT ANSWER D Hills of sand built by wind-related processes are known as A. karst topography. B. dunes. C. loess deposits. D. crevasses. - CORRECT ANSWER B The release of chlorofluorocarbons into Earth's atmosphere has been shown to A. deplete ozone. B. pollute groundwater. C. increase greenhouse gases. D. weather sedimentary rock. - CORRECT ANSWER A During summer in the Southern hemisphere, the Northern hemisphere experiences A. summer. B. winter. C. spring. D. fall. - CORRECT ANSWER B According to optical spectrometers, the coolest stars in the known universe are colored A. white. B. yellow. C. red. D. blue. - CORRECT ANSWER C An astronomer viewing a distant star notices the star's spectral lines are shifted toward shorter wavelengths. This change in wavelength is known as A. Doppler shift. B. spectral frequency. C. the Coriolis effect. D. planetary motion. - CORRECT ANSWER A A group of celestial objects found in a region located beyond the orbit of the planet Neptune are known as A. asteroids. B. comets. C. meteors. D. Kuiper belt objects. - CORRECT ANSWER D What is the name of a group of stars visibly related to each other in a particular configuration or pattern? A. galaxy B. constellation C. nebula D. comet - CORRECT ANSWER B The revolution of planets around the Sun comes from this view of celestial motion. A. geocentric B. nebulian C. heliocentric D. polycentric - CORRECT ANSWER C The DNA of eukaryotes can be found in the A. nucleus. B. ribosomes. C. lysosomes. D. cytoplasm. - CORRECT ANSWER A Which cell organelle is responsible for the transport of proteins? A. mitochondria B. endoplasmic reticula C. centriole D. lysosome - CORRECT ANSWER B In humans, Trisomy 21 due to nondisjunction usually results in an individual with A. Multiple Sclerosis B. Crohn's Disease C. Parkinson's Disease D. Down Syndrome - CORRECT ANSWER D What is the inheritance pattern typified by a 3:1 phenotype ratio? A. complete dominance in a dihybrid cross B. complete dominance in a monohybrid cross C. incomplete dominance in a monohybrid cross D. incomplete dominance in a dihybrid cross - CORRECT ANSWER B The substance that goes through a process of translation within cells in order for proteins to be synthesized is A. DNA. B. mRNA. C. chlorophyll. D. cytoplasm. - CORRECT ANSWER B What classification of protozoan uses pseudopods as a means of locomotion? A. sarcodina B. mastigophora C. cnidospora D. sporozoa - CORRECT ANSWER A Which kingdom of scientific classification does the duck-billed platypus belong to? A. vertebrata B. chordata C. animalia D. mammalia - CORRECT ANSWER C Before reaching the ovary, in mature flowers pollen is received by the A. sepals. B. anther. C. stigma. D. filament. - CORRECT ANSWER C In human circulation, which of the following is responsible for carrying oxygen to cells throughout the body? A. platelets B. white blood cells C. red blood cells D. bone marrow - CORRECT ANSWER C During human digestion, a substance broken down into peptides by gastric acid in the stomach is A. glucose. B. fat. C. amino acid. D. protein. - CORRECT ANSWER D Which of the following is part of the human endocrine system? A. kidneys B. thyroid C. lungs D. gall bladder - CORRECT ANSWER B Which kind of behavior best describes an animal defending a nest, den, or mating site? A. instinctive B. learned C. social D. territorial - CORRECT ANSWER D Which of the following is not part of the water cycle? A. respiration B. evaporation C. condensation D. accumulation - CORRECT ANSWER A Which of the following is associated with dissolutioned rock, such as limestone? A. wind erosion B. sinkholes C. sand dunes D. rust - CORRECT ANSWER B A change in the types of species of an ecological community over time is known as A. succession. B. infestation. C. rehabitation. D. intrusion. - CORRECT ANSWER A Which of the following has been shown to upset homeostasis in the human body? A. perspiration B. respiration C. circulation D. stress - CORRECT ANSWER D These organisms mainly obtain their energy from producers. A. primary consumers B. omnivores C. carnivores D. tertiary consumers - CORRECT ANSWER A A physics teacher plans to have students work with pendulums made from string and washers. His planned activity is A. appropriate only if all parents have given their permission. B. inappropriate for students to perform regardless of parental permission. C. permissible so long as students are wearing appropriate eye protection. D. subject to approval by the science department head. - CORRECT ANSWER C The appropriate device used to measure the distance travelled by automobile is a(an) A. galvanometer. B. pedometer. C. odometer. D. o-scope. - CORRECT ANSWER C A solution with a pH of 5 is considered to be A. acidic B. neutral C. alkaline D. concentrated - CORRECT ANSWER A Who is especially known for the development of the electric battery? A. Alessandro Volta B. James Watt C. Georg Ohm D. André-Marie Ampere - CORRECT ANSWER A A teacher gives students a science activity to perform along with the materials, the method, and the expected outcomes. The students must complete a worksheet that includes data and observations from the experiment. This is an example of A. structured inquiry. B. guided inquiry. C. open inquiry. D. verification. - CORRECT ANSWER D Which of the following states of matter is believed to be the most common in the visible universe? A. solid B. liquid C. gas D. plasma - CORRECT ANSWER D All the matter we know of can be broken down into simple substances called A. compounds. B. mixtures. C. elements. D. ions. - CORRECT ANSWER C This scientist proposed the "electron cloud" model of the atom. A. John Dalton B. Niels Bohr C. Ernest Rutherford D. Erwin Schrödinger - CORRECT ANSWER D The atomic number tells us how many of these are found in the nucleus of an atom. A. proton B. neutron C. electron D. positron - CORRECT ANSWER A To find the approximate number of neutrons in an atom, A. add the atomic number and the atomic weight. B. subtract the atomic number from the atomic weight. C. multiply the atomic number and the atomic weight. D. divide the atomic weight by the atomic number. - CORRECT ANSWER B The number of neutrons in an atom can differ, so you can have different forms of the same element. These atoms are called A. isotopes. B. neutron pairs. C. positive ions. D. negative ions. - CORRECT ANSWER A The nucleus of an atom is held together by a strong A. gravitational force. B. electromagnetic force. C. nuclear force. D. fusion of atoms. - CORRECT ANSWER C A positive ion is also known as a A. anion. B. cation. C. proton. D. valence electron. - CORRECT ANSWER B A negative ion is also known as a A. anion. B. cation. C. proton. D. valence electron. - CORRECT ANSWER A A physical property that describes the ability of a substance to dissolve is called A. density. B. cohesion. C. reactivity. D. solubility. - CORRECT ANSWER D A chemical property that can cause some materials to rust is called A. oxidation. B. flammability. C. radioactivity. D. decay. - CORRECT ANSWER A Scientists describe energy as A. a change in the entropy of a closed system. B. the motion of an object. C. the ability to do work. D. a state of matter that can not be created or destroyed. - CORRECT ANSWER C Which of the following is not needed for photosynthesis to take place? A. light energy B. water C. carbon dioxide D. soil - CORRECT ANSWER D Within the Sun, atoms are squeezed together resulting in a tremendous release of energy. This joining of atoms is called A. fusion. B. fission. C. recombination. D. radioactivity. - CORRECT ANSWER A How is energy changed from one form to another for use in a portable generator? A. chemical energy to mechanical energy to electrical energy B. chemical energy to atomic energy to mechanical energy C. mechanical energy to atomic energy to electrical energy D. chemical energy to mechanical energy to friction - CORRECT ANSWER A A hot burner moves thermal energy to a cooler pan through A. sublimation. B. conduction. C. evaporation. D. electron transfer. - CORRECT ANSWER B Energy comes to us from the Sun in the form of what we call A. wave-particle transfer. B. elemental matter transmission. C. Aurora Borealis. D. electromagnetic radiation. - CORRECT ANSWER D At the highest energy level, the Sun emits what we call A. x-rays. B. ultraviolet rays. C. gamma rays. D. visible light. - CORRECT ANSWER C The type of radiation used to communicate information to TVs via remote control is called A. microwave. B. infrared. C. ultraviolet. D. nuclear. - CORRECT ANSWER B Energy of motion is called A. potential energy. B. kinetic energy. C. temperature. D. chemical energy. - CORRECT ANSWER B Which scientific law describes the idea that energy cannot be created or destroyed? A. Law of Conservation of Energy B. Third Law of Motion C. First Law of Thermodynamics D. Ohm's Law - CORRECT ANSWER A A kind of resistance that occurs when two surfaces touch is A. interference. B. friction. C. heat. D. inertia. - CORRECT ANSWER B Which of the following describes any change in the motion of an object? A. speed B. acceleration C. momentum D. velocity - CORRECT ANSWER B Calculate the average speed of a vehicle that traveled a total distance of 235 miles in 5 hours. A. 0.02 m/s B. 47 m/s C. 0.02 m/h D. 47 m/h - CORRECT ANSWER D The equation F = M x A is described in A. Newton's 1st Law of Motion B. Newton's 2nd Law of Motion C. Kepler's 1st Law of Motion D. Kepler's 2nd Law of Motion - CORRECT ANSWER B Newton's 3rd Law of Motion deals with A. momentum. B. inertia. C. action and reaction. D. velocity. - CORRECT ANSWER C The opposite poles of a magnet A. attract one another. B. repel one another. C. attract negatively charged material. D. attract positively charged material. - CORRECT ANSWER A Movement of an electric charge from negative to positive through a conductor is known as A. magnetism. B. static electricity. C. current electricity. D. an electric cell. - CORRECT ANSWER C What is the pulling force exerted on and between all objects with mass? A. gravity B. electricity C. magnetism D. contact force - CORRECT ANSWER A What is the back and forth motion of an object that produces sound known as? A. pitch B. amplitude C. volume D. vibration - CORRECT ANSWER D What is the frequency of sound measured in? A. Voltage B. Pitch C. Joules D. Hertz - CORRECT ANSWER D Compared to dull and rough rock surfaces, shiny and smooth rock surfaces are most likely to cause sunlight to be A. reflected. B. refracted. C. polarized. D. diffused. - CORRECT ANSWER A Which sedimentary rock is most likely to be changed to slate during metamorphism? A. breccia B. conglomerate C. dolostone D. shale - CORRECT ANSWER D The water sphere of the earth is known as the A. atmosphere. B. troposphere. C. lithosphere. D. hydrosphere. - CORRECT ANSWER D Compared to the Earth's crust, Earth's core is believed to be A. less dense, cooler, and composed of more iron. B. less dense, hotter, and composed of less iron. C. more dense, hotter, and composed of more iron. D. more dense, cooler, and composed of less iron. - CORRECT ANSWER C What are the two most abundant elements by mass found in Earth's crust? A. aluminum and oxygen B. sodium and chlorine C. calcium and carbon D. oxygen and silicon - CORRECT ANSWER D Two streams begin at the same elevation and have equal volumes. Which statement best explains why one stream could be flowing faster than the other stream? A. The faster stream contains more dissolved minerals. B. The faster stream has a much steeper gradient. C. The streams are flowing in different directions. D. The faster stream has a temperature of 10-degrees Celsius, and the slower stream has a temperature of 20-degrees Celsius. - CORRECT ANSWER B Clouds usually form when A. air temperature reaches the dewpoint. B. evaporation has warmed the surrounding air. C. relative humidity is 0%. D. condensation nuclei have been removed from the air. - CORRECT ANSWER A What is the basic difference between ultraviolet, visible, and infrared radiation? A. half-life B. temperature C. wavelength D. wave velocity - CORRECT ANSWER C Which term refers to the Earth-centered model of our solar system? A. geocentric B. nebulian C. heliocentric D. polycentric - CORRECT ANSWER A Which term refers to the Sun-centered model of our solar system? A. geocentric B. nebulian C. heliocentric D. polycentric - CORRECT ANSWER C An ion with 5 protons, 6 neutrons, and a charge of 3+ has an atomic number of A. 5. B. 6. C. 8. D. 11. - CORRECT ANSWER A Which group of organisms is believe to be among the earliest to evolve on Earth? A. arthropods B. coelenterates C. protozoans D. reptiles - CORRECT ANSWER C To which phylum do flatworms belong? A. Arthropod B. Platyhelminthes C. Nematoda D. Chordata - CORRECT ANSWER B To which phylum do human belong? A. Arthropod B. Platyhelminthes C. Nematoda D. Chordata - CORRECT ANSWER D To which phylum do insects belong? A. Arthropod B. Platyhelminthes C. Nematoda D. Chordata - CORRECT ANSWER A What type of bond is formed when an atom gives an electron to another atom? A. Ionic B. Covelant C. Polar D. Non-polar - CORRECT ANSWER A Theorized that atoms could not be divided or destroyed. A. John Dalton B. Rutherford C. Niels Bohr D. J.J. Thomson - CORRECT ANSWER A Plant like organisms that do not make their own food but take nutrients that they need from the environment belong to which kingdom? A. Monera B. Protista C. Fungi D. Plantae - CORRECT ANSWER C A checkerboard-type diagram used to find the possible combinations of factors in the offspring of two parents is called a A. Venn Diagram B. Linnaean System C. Punnett Square D. Dichotomous Key - CORRECT ANSWER C A guide used to identify an organism based on its characteristics is called a A. Venn Diagram B. Linnaean System C. Punnett Square D. Dichotomous Key - CORRECT ANSWER D When a species or individual in a community exhibits behaviors that benefit another individual at a cost to itself is known as A. Predation B. Threat Display C. Commensalism D. Altruism - CORRECT ANSWER D The first person to observe a single-cell organism through a magnification lense was A. Antonie van Leeuwenhoek B. Carl Von Linnaeus C. Gregor Mendel D. Niels Bohr - CORRECT ANSWER A He created method to classify plants and animals: A. Antonie van Leeuwenhoek B. Carl Von Linnaeus C. Gregor Mendel D. Niels Bohr - CORRECT ANSWER B The founder of the modern science of Genetics and Heredity is A. Antonie van Leeuwenhoek B. Carl Von Linnaeus C. Gregor Mendel D. Democritus - CORRECT ANSWER C Developed the first conceptualization of the atom in 400 B.C. A. Antonie van Leeuwenhoek B. John Dalton C. Democritus D. Niels Bohr - CORRECT ANSWER C Cool, solid portion Earth that includes all of the crust and part of the upper mantle is called the A. lithosphere B. asthenosphere C. biosphere D. hydrosphere - CORRECT ANSWER A The combined mass of water found on, under, and above the surface of a planet is the A. lithosphere B. asthenosphere C. cryosphere D. hydrosphere - CORRECT ANSWER D The collective name for the lithosphere, the hydrosphere, the cryosphere, and the atmosphere is A. mesosphere B. asthenosphere C. geosphere D. biosphere - CORRECT ANSWER C The portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground (which includes permafrost) is the A. cryosphere B. asthenosphere C. geosphere D. hydrosphere - CORRECT ANSWER A The zone of partially melted rock in the upper mantle of the Earth is the A. lithosphere B. asthenosphere C. cryosphere D. geosphere - CORRECT ANSWER B Contrary to an earlier theory, the conclusion that atoms could be divided was made by A. Democritus B. J.J. Thompson C. John Dalton D. Ernest Rutherford - CORRECT ANSWER B Concluded that the nucleus was dense, small, and positively charged. A. Niels Bohr B. J.J. Thompson C. John Dalton D. Ernest Rutherford - CORRECT ANSWER D The process by which soft sediments become rigid rock is known as A. Compaction B. Lithification C. Cementation D. Sendimentation - CORRECT ANSWER B Left most column on the Periodic Table, known to react violently to water and share a shiny or silvery white appearance, is called A. Alkaline Earth Metals B. Noble Gases C. Alkali Metals D. Halogens - CORRECT ANSWER C The 2nd column from the right-hand side of the Periodic Table, known to be reactive and poisonous, is called A. Alkaline Earth Metals B. Noble Gases C. Alkali Metals D. Halogens - CORRECT ANSWER D Last group on the right of the Periodic Table, known to be colorless, odorless, and nonreactive, is called A. Alkaline Earth Metals B. Noble Gases C. Alkali Metals D. Halogens - CORRECT ANSWER B What is the term that defines the formula Volts x Amps = Watts? A. Power B. Ohms C. Joules D. Hertz - CORRECT ANSWER A Which of the following correctly lists the layers of the atmosphere, starting from the Earth's surface? A. exosphere, thermosphere, mesosphere, stratosphere, troposphere B. troposphere, stratosphere, mesosphere, exosphere, thermosphere C. troposphere, stratosphere, mesosphere, thermosphere, exosphere D. exosphere, stratosphere, troposphere, mesosphere, thermosphere - CORRECT ANSWER C Earth's weather occurs in this layer of the atmosphere. A. stratosphere B. troposphere C. thermosphere D. mesosphere - CORRECT ANSWER B Earth's ozone layer is part of this layer of the atmosphere. A. stratosphere B. troposphere C. thermosphere D. mesosphere - CORRECT ANSWER A The two most abundant elements in the Universe are A. Hydrogen and Iron B. Hydrogen and Helium C. Nitrogen and Carbon D. Carbon and Hydrogen - CORRECT ANSWER B The pressure of a gas increases as its volume decreases (if temperature is held constant) A. Charles' Law B. Boyle's Law C. Gay-Lussac's Law D. Graham's Law - CORRECT ANSWER B If the pressure of a gas is held constant, as that gas is heated, its volume will increase A. Charles' Law B. Boyle's Law C. Gay-Lussac's Law D. Graham's Law - CORRECT ANSWER A If the volume of a container is held constant as the temperature of a gas increases, the pressure inside the container will also increase A. Charles' Law B. Boyle's Law C. Gay-Lussac's Law D. Graham's Law - CORRECT ANSWER C The effusion rate of a gas is inversely proportional to the square root of its molecular mass A. Charles' Law B. Boyle's Law C. Gay-Lussac's Law D. Graham's Law - CORRECT ANSWER D Particles will spread out and move from a region of high concentration to a region of low concentration A. Resonance B. Effusion C. Diffusion D. Enthalpy Change - CORRECT ANSWER C When gas particles exit through tiny holes in a container, this is called A. Resonance B. Effusion C. Diffusion D. Enthalpy Change - CORRECT ANSWER B Amount of energy as heat that is lost or made by a system A. Resonance B. Effusion C. Diffusion D. Enthalpy Change - CORRECT ANSWER D Newton's First Law of Motion A. All planets orbit the sun in a path that resembles an ellipse, with the sun being located at one of the foci of that ellipse B. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. C. For every action there is an equal and opposite re-action. D. Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). - CORRECT ANSWER B Newton's Second Law of Motion A. Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). B. For every action there is an equal and opposite re-action. C. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. D. All planets orbit the sun in a path that resembles an ellipse, with the sun being located at one of the foci of that ellipse - CORRECT ANSWER A Newton's Third Law of Motion A. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. B. All planets orbit the sun in a path that resembles an ellipse, with the sun being located at one of the foci of that ellipse C. Acceleration is produced when a force acts on a mass. The greater the mass the greater the amount of force needed. D. For every action there is an equal and opposite re-action. - CORRECT ANSWER D Often referred to as the Law of Inertia A. Newton's Third Law B. Newton's Second Law C. Newton's First Law D. Kepler's First law - CORRECT ANSWER C Force = Mass x Acceleration A. Newton's Third Law B. Newton's Second Law C. Newton's First Law D. Kepler's Third law - CORRECT ANSWER B Clouds that can be distinguished by their puffy white cotton balls, sharp outlines and flatbase (Vertical Growth) are called A. Stratus B. Altocumulus C. Cumulus D. Cirrus - CORRECT ANSWER C Clouds that are formed when warm air rises quickly in the atmosphere and often associated with thunderstorms are called A. Nimbostratus B. Cumulonimbus C. Cirrostratus D. Altocumulus - CORRECT ANSWER B Low clouds that are lumpy, gray, and often carry little to no precipitation are called A. Stratocumulus B. Nimbostratus C. Stratus D. Cirrocumulus - CORRECT ANSWER A Low clouds that appear dark gray, have a ragged base, cover whole sky, and often contain light rain or snow are called A. Cumulonimbus B. Stratus C. Nimbostratus D. Stratocumulus - CORRECT ANSWER C High clouds that contain ice and appear as long, thin, whispy streamers are called A. Cirrus B. Stratocumulus C. Cirrostratus D. Cumulonimbus - CORRECT ANSWER A High clouds that cover the entire sky and often proceed rain or snow storms are called A. Altocumulus B. Cirrus C. Cumulus D. Cirrocumulus - CORRECT ANSWER D Middle clouds that cover whole sky, appear gray to gray-bluish, and form ahead of storms are called A. Cumulonimbus B. Altostratus C. Nimbostratus D. Stratocumulus - CORRECT ANSWER B The type of covalent bond in which electrons are shared equally is called A. Ionic B. Polar C. Non-polar D. Ditonic - CORRECT ANSWER C The type of covalent bond in which electrons are shared unequally is called A. Ionic B. Polar C. Non-polar D. Ditonic - CORRECT ANSWER B Which of the following compounds is not allowed in a school laboratory because it is a potential carcinogen? A. Lead B. Benzene C. Aspartame D. Methanol - CORRECT ANSWER B A laboratory experiment requires that red blood cells be separated from the serum in whole blood. Which of the following laboratory techniques would be most appropriate for this task? A. Spectroscopy B. Sublimation C. Microscopy D. Centrifugation - CORRECT ANSWER D Which of the following quantities is largest in the metric system of measurement? A. 10 decigrams B. 100 milligrams C. 100 grams D. 1 decagram - CORRECT ANSWER C In an experiment of respiration, carbon dioxide production is measured over time. Place the data in a chart is A. A visual representation of the data B. A conclusion based on the data C. The raw data D. A comparative analysis of the data - CORRECT ANSWER A In order to be included in the formation of a scientific conclusion, evidence must be A. Quantitative B. Reproducible C. Obvious D. All of the above - CORRECT ANSWER B A researcher is studying the responses of bacteria to a certain chemical. In three experiments, the bacteria swim towards the chemical, and in one experiment the bacteria swims away from it. What would be the most appropriate next step for the researcher? A. Report only the first three experiments. B. Report all the experiments, but refrain from making any conclusions. C. Repeat the experiment several more times and apply a statistical analysis to the data. D. Repeat the experiment, adding a new chemical to determine its effect on the bacteria. - CORRECT ANSWER C Which of the following biological discoveries was made first? A. Louis Pasteur discovered the causative role of microorganisms. B. Charles Darwin discovered the principles of natural selection. C. Gregor Mendel discovered that genes are the basic units of inheritance. D. Carl Von Linnaeus discovered that living things could be organized into a binomial system of nomenclature. - CORRECT ANSWER D In a study investigating the causes of stomach ulcers, researchers observed that coffee drinkers had a higher incidence of stomach ulcers than those who didn't drink coffee. This is an example of A. A controlled experiment B. A cause and effect relationship C. Correlation between two variables D. Systematic error in sampling - CORRECT ANSWER C Which of the following is an example of a renewable resource? A. Tree. B. Ore minerals. C. Fossil fuels. D. Cash crop. - CORRECT ANSWER D Which of the following is not a significant factor in the dramatic increase of the human population over the past few hundred years? A. Increased availability of habitable land B. Scientific advances in agriculture C. Improved sanitation D. An understanding of the causes of communicable diseases - CORRECT ANSWER A Which of the following is a constant? A. The freezing point of water. B. The temperature at which iron ore will melt. C. The human population size. D. The time the sun rises each day. - CORRECT ANSWER A Which of the following is an example of a chemical reaction? A. Heating ethanol so that it evaporates. B. Igniting ethanol so that it burns. C. Dissolving salt in water. D. Making ice cubes in a freezer. - CORRECT ANSWER B Of the following, which is the most basic unit of matter? A. A helium atom. B. A sodium ion. C. A proton. D. An oxygen molecule. - CORRECT ANSWER C Which of the following phenomena would most readily lend itself to mathematical modeling? A. The position of an electron in orbit around the nucleus of an atom. B. The rate of blood flow through an artery. C. The force required to extend a metal spring by a certain length. D. The rate at which cells divide in an embryo. - CORRECT ANSWER C Without _____________ applied to it, an object in motion will tend to stay in motion. A. Force B. Inertia C. Gravity D. Acceleration - CORRECT ANSWER A A car trip to a point 50 miles away from home and back takes 4 hours. The top speed of the car was 50 miles per hour, and this speed was maintained during the second and third hours of the trip. Which of the following values represents the average velocity of the car? A. 0 m/h B. 12.5 m/h C. 25 m/h D. 50 m/h - CORRECT ANSWER A Which of the following properties of a meteorite moving through the planet's atmosphere would change as it approached the surface of the earth? A. Its mass B. Its volume C. Its density D. Its weight - CORRECT ANSWER D Which of the following is not an example of one of Newton's laws of motion at work? A. Once in orbit, a satellite will continue moving around the earth. B. It takes three times as much force to move a block that has twice the mass of another. C. A ball rolling across the floor will continue moving across the floor. D. When a shotgun is fired, the gun moves sharply in the opposite direction of the bullet. - CORRECT ANSWER B Heating a liquid will most likely change its A. Crystal structure B. Density C. Mass D. Electrical conductivity - CORRECT ANSWER B Which of the following changes in physical properties is a chemical change? A. Dissolving a seltzer tablet in water. B. Grinding pepper into a powder. C. Freezing water. D. Churning cream into butter. - CORRECT ANSWER A Which of the following is a property of nonmetals? A. They are good conductors of electricity. B. They do not form isotopes. C. They react with metals. D. They are dense, hard, and have melting points. - CORRECT ANSWER C An element on the periodic table will have chemical reactivity most like the element A. To the right or left of it on the table. B. Above or below it on the table. C. Within two horizontal spaces of it on the table. D. Placement on the table is not related to the chemical properties of an element. - CORRECT ANSWER B Which of the following components of an atom varies in isotopes? A. Protons B. Neutrons C. Electrons D. Neurons - CORRECT ANSWER B Which of the following compoenents of an atom is most likely to be lost or gained in a chemical reaction? A. Protons B. Neutrons C. Electrons D. Isotopes - CORRECT ANSWER C Which of the following substances is most likely to contain acetic acid? A. Cream of tartar B. Vinegar C. Baking Soda D. Water - CORRECT ANSWER B In photosynthesis, what kind of chemical reaction transforms CO2 into carbohydrates? A. Oxidation B. Chemiosmosis C. Reduction D. Hydrolysis - CORRECT ANSWER C Which of the following does not contribute to an object's potential energy? A. Mass B. Gravity C. Height D. Temperature - CORRECT ANSWER D Energy is measured in A. Joules B. Volts C. Ohms D. Amperes - CORRECT ANSWER A The movement of ions across a cell membrane is called A. Chemiosmosis B. Osmosis C. Meiosis D. Mitosis - CORRECT ANSWER A The process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane is called A. Chemiosmosis B. Osmosis C. Meios