Science MOCA Questions and Answers with Certified Solutions

Science MOCA Questions and Answers with Certified Solutions Wanting to find Population density in Missouri. What to look at? Population by square mile Which is a chemical compound? Water Which activity would best fit in the Larval cycle of the butterfly life cycle? Obtaining nutrients What truck would drive in snow/sand the best? Pickup truck Polyp cycle to medusa cycle Jellyfish Darwins natural selection Survival of the fittest, birds with different beaks, which one works best and helps the animal to survive Late nineteenth century immigration from China to America, what did it help with? Establishing pacific transcontinental shipping A coyote and a wolf are the same genus but are different Species Organisms in the same species are determined by Can interbreed Purpose of cell wall in plants Holds the chloroplasts and organelles inside A person is traveling along in the car, the car comes to a sudden stop but the person keeps going, why? INERTIA When the car stopped, your body stayed in motion. If you were not wearing a seatbelt and you were traveling very fast, your body could continue to move forward through the windshield! Which of the following is a nonrenewable resource Plastic Wire wrapped around nail, ends of wires connected to a battery. Why does it become magnetic to a paper clip? Temporarily magnetizes it What causes acid rain? Ash and smoke polluting the air Mice put in a space with constant direct fluorescent light, no windows to test hormones. Best way to find a constant for research? Mice in space with light that mimics day and night Two thermometers put into two different places, which of the following is the most accurate statement about the graphs. Graph one pretty constant, graph two high temp during 12pm to 2-3pm The thermometers were put in significantly different areas Plant put in window, leaves grow away from window. Why? Phototropism negative (any answer that includes photosynthesis) What energy do you get from a battery (?) is Chemical energy How do glasses work? Light passing through is refracted towards the thickest part of the lens However when a light is shone over black, it still appears black, why? Absorbs all color What played a major difference in information processing in the late 20th century? Global positioning systems Biggest difference between producing sexually versus asexually? Greater genetic variations Which of the following is closely related to salmonella ? Turtle The largest difference between an igneous rock into metamorphic rock? Has visible crystals Main gas of Earth's atmosphere Nitrogen Photosynthesis takes place where? Chloroplasts New Moon occurs when it is positioned where? Between the Earth and Sun A farmer has been exposed to cowpox but has not had smallpox. Which explains why this happened? Immunization Punnet squares A diagram used to predict an outcome of a particular cross or breeding experiment Properties of light when seen through eyeglasses Lenses help focus on the light Information processing intervention in 20th century Silicon Chip In today's world, how can you determine an organism? Nucleus A creature has a dominant allele for straight fur and a recessive allele for curly fur (Ss). The other parent has two recessive alleles for curly fur (ss). What is the chance the offspring will have straight fur? 50% A researcher notices that after a bird species leaves for the winter and comes back, there are fewer birds. What is the first thing he should do if he wants to conduct research on why this happened? Create a hypothesis What has a cell well and no nucleus? Bacterium Why do sharks and whales both have fins? Ancestors What causes plate tectonics? Intense heat in the Earth's core that causes molten rock in the mantle layer to move What causes seasons? Tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun What causes oceanic tides? The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon Why does the West coast have more earthquakes than the East coast? Tectonic plates. California is above 2 tectonic plates What is the effect of using corn-based ethanol instead of petroleum oil? Raises price on food Which is a chemical compound? Water Which is non renewable? Plastic What is an example of Newton's 3rd law? Kicking a ball and feeling pressure on your foot What is crosscutting? A way of linking the different domains of science. They include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change Why is oil nonrenewable? Takes millions of years Which one of these gives away heat/energy? Coal When a light shines over colors, sometimes they appear to be a different color. Objects appear different colors because they absorb some colors (wavelengths) and reflected or transmit other colors. The colors we see are the wavelengths that are reflected or transmitted. Orientation of leaves during photosynthesis Towards the sun What determines a land mammals place in an ecosystem? Digestive System What are the steps Hydrologic (Water) Cycle? evaporation, condensation, precipitation and collection Where do scientists think crude oil came from? Marine Organisms What are examples of a chemical reaction while making breakfast? Boiling water, toasting bread, brewing coffee An experimenter is trying to figure out how the pH level of a pond effects frogs, how can the researcher create a control? Take frogs from habitats to test against frogs in other pH levels An experimenter is trying to figure out how light effects frogs, he places the frog in a cage with florescent light on them at all times. He wants to create a control, how should he do this? Expose other frogs to day and night conditions When a panel absorbs energy from the sun to power a yard light, what best describes the transfer of energy? Solar energy to light energy All objects in the universe are attracted to one another by what force? Gravitational Pull Kim bought some fireworks to shoot off on the 4th of July. She noticed several different powders mixed together in the tube. As the chemicals were ignited, what evidence did she observe that would indicate a chemical reaction had occurred? A change in color Karol placed a small cardboard box of books on a metal rolling cart. On her way to the bookshelf, her dog Nixie ran out in front of the cart causing Karol to stop suddenly. Although the cart stopped suddenly, the box stayed in place on the cart. What force kept the box of books on the cart when she stopped? Friction A frozen Popsicle was left in the sun and melted. What is true regarding the properties of the Popsicle after it melted? The chemical composition of the popsicle remained the same Lee put on a magic show for his classmates. He wanted to prove that he could make a metal car move, without touching it, using a paper wand. Which of these is probably the secret to his successful magic trick? The paper wand had a magnet inside that attracted the metal Terry put a marble in a graduated cylinder of water measuring 47 mL; the water level increased to 51 mL. Which force accounted for the increasing volume of water? Displacement A woman accidentally left her purse on top of her car and drove out of her driveway. She traveled a short distance down the road and a deer darted out in front of her, causing her to quickly apply the brakes. When she hit the brakes, she saw her purse slide down her windshield and onto the hood of her car. Which one of Newton's Laws does this scenario relate to? Newtons 1st law In which order does air go down your throat? the trachea (windpipe) to your lungs Upper atmosphere gas Ozone What would cause disease in wild bunnies? Famine and drought