PICAT study guide

PICAT study guide Which of these is the best explanation of how a smooth round stone became smooth? Ans- It was in a stream for a long time. In a balanced aquatic ecosystem, what would have the greatest population? Ans- Plankton Any astronomical body that revolves around a larger body is called Ans- A satellite In chemistry, to be classified as an organic substance, a substance must contain Ans- Carbon atoms what element does not contain any neutrons? Ans- Hydrogen The chemical formula of a compound describes the elements the compound contains and the ...... AnsRatio of elements in the compound. What is the symbol for the hydroxyl ion? Ans- OHThe tympanic membranes are also know as the... Ans- Ear drums what would produce a chemical change? Ans- Adding salt to the hot water Choking is prevented by the.... Ans- Epiglottis covering the voice box What do a hydrogen molecule and an oxygen molecule have in common? Ans- the size What is non-renewable resource? Ans- copper What are the 2 main gases that make up stars? Ans- hydrogen and helium the term "meiosis" is usually associated with Ans- Reproduction Together, two people earn 28,000. One earns 2,000 more than the other. How much is the smaller income? Ans- 13,000 Jerry walked a dog from 6:40am to 7:30pm one day. If he was paid at the rate of 6$ per hour, how much did he earn that day? Ans- $5.00 A women is looking for a bigger square office. She finds an office twice the area of her current office. If the perimeter of her current office is 88 feet, how many square feet is the new office? Ans- 968 sq ft How many feet of a chain fence are necessary to enclose a dog pen that is square and has an area of 64 square feet? Ans- 32 A train goes twice as fast downhill as it can go uphill, and 2/3 as fast uphill as it can go on level ground. If it goes 120 mph downhill, how long will it take to travel 45 miles on flat land? Ans- 1/2 hour The pet store had six puppies selling for 104 each and twelve kittens selling for 24 each. Today, only two puppies and eight kittens were left. In dollar terms, what was the ratio of sales of puppies to kittens? Ans- 13 to 3 Jamie just bought two boxes. The first box is square, with each side measuring 10 units, and is 4 units high. The second box is rectangular and has twice the volume of the square box. If the height of the second box is 5 units, and the width is 10 units, what is the length of the second box? Ans- 16 units If the perimeter of a garden is 84 feet, what is the area of the garden? Ans- 441 sq ft The price of salmon at a fish market is 5.40 per pound. This is 150% its cost at a supermarket. How much would it cost per pound at the supermarket? Ans- $3.60 There are 9 red and 6 green marbles in a bag. A child reaches in the bag and randomly takes one marble. What is the probability pf that child getting a green marble? Ans- .40 Each August, a restaurant's rent is adjusted to the cost of living index. The rent has been 1,550 a month, and the cost of living index for this August was 3.7%. What is the new rent per month? Ans- $1,607.35 Before being painted, a concrete play area was marked off into squares and then into triangles. For the square shown, what is the area of the triangular part labeled XYZ? Ans- 32 sq ft If the population of a certain city increased 25% in two years, the new population was what percent of the old? Ans- 125% A printing press will print 6,000 copies in 20 minutes. A second press can print 15,000 copies in 60 minutes. How many more copies per minute will be faster press print than slower press? Ans- 50 if the ratio of the sides of two squares is 3:1 what is the ratio of their perimeters? Ans- 3:1 Prestige most nearly means Ans- Status We will long remember our perilous journey Ans- hazardous Inept most nearly means Ans- bungling Oppressive most nearly means Ans- tyrannical Fervently most nearly means Ans- passionately Devout most nearly means Ans- pious Adage most nearly means Ans- proverb Embody most nearly means Ans- to exemplify Erratically most nearly means Ans- irregularly Admonition most nearly means Ans- warning Communique most nearly means Ans- message Decry most nearly means Ans- disparage Peruse most nearly means Ans- to study Cajole most nearly means Ans- wheedle Contentious most nearly means Ans- quarrelsome Your heart's mitral valve does an awfully big job. Letting blood from the left atrium of the heart into the left ventricle without losing a drop is one of the toughest tasks in the circulatory system. In fact, if the system was suddenly opened at that point the force of the valve closing with send blood 5 feet into the air In this passage the author's purpose is to? A. describe the circulatory system B. convince readers of the stress on the mitral valve C. inform readers of defects in the mitral valve D. minimize the importance of the mitral valve Ans- B. convince readers of the stress on the mitral valve Riding the mail plane is a low-budget way to visit America's largest national park Wrangle Street Elias 13 million Acres of Scenic Beauty. Copper first Drew Prospectors to this part of Alaska. From 1911 to 1938, the kinetic mine produced 200 million tons of it now a mecca for Taurus, the town of Kennicott was abandoned to the ghost when the copper ran out according to the passage which of the following illustrates the correct sequence of events. A. copper drew prospectors, copper ran out, town abandoned, tourist attraction. B. copper drew prospectors, tourist attraction, copper ran out, town abandoned. C. copper drew prospectors, copper ran out, tourist attraction, town abandoned. D. copper drew prospectors, tourist attraction, town abandoned, copper ran out. Ans- A. copper drew prospectors, copper ran out, town abandoned, tourist attraction. Physicists seek out those features of nature that are simple and universal. The secret of their success is not so much a matter of finding answers as it is asking the right questions. The trick is keeping the questions simple and sticking to universal phenomena. Simple questions can be answered unambiguously by careful observation of repeated experiments and by logical thinking. A. How can the destruction of the environment be prevented? B. What can people do to live happier lives? C. How fast do stones of a particular size fall? D. How large was the meteorite that was observed last night? Ans- C. How fast do stones of a particular size fall? An allergy is a hypersensitivity to substances that are essentially harmless. For as yet poorly understood reasons, the immune system malfunctions and marshals up an army of antibodies to fight these substances. For many allergies, this malfunction causes a large amount of histamine to flood into the bloodstream. It is overabundance of histamine that causes allergic symptoms such as headaches, rashes, and sneezing. The passage states all of the following about allergies EXCEPT A. Allergic headaches, rashes, and sneezing are caused by an overabundance of histamine in the bloodstream. B. An allergic reaction is the result of a false alarm in the body immune system. C. Medical science does not fully understand why the body has an allergic reaction to certain substances. D. The body reacts to histamine in the bloodstream by producing antibodies to fight it. Ans- B. An allergic reaction is the result of a false alarm in the body immune system. a period of time is usually measured by comparing it with another period of time. For example, a year on Mercury is equal to 88 Earth days. A year on Uranus is approximately 348 Mercury years. According to the passage, the way time is usually measured shows that time is A. Flexible B. Relative C. Cyclical D. Calendar -based Ans- B. Relative From Texas to South California low water maintenance landscaping and popularity of desert themes have made Cactus very valuable. Considering the fact that Cactus have extremely slow growth and that the reproduction rates restlers anticipates significant profits for this shallow-rooted succulent. Removing cactus from the state-owned land however is a felony and if state lines are crossed the 1900 Lacy X makes this same crime of federal offense from this passage determine the sequence of events From this passage, determine the sequence of events. A. Lacey act passage, cactus popularity, cactus rustling B. Cactus popularity, transport of stolen cactus, cactus theft. C. Cactus theft, Lacey act, cactus popularity diminishes D. Lacey act passage, prosecution, transport of stolen cactus. Ans- B. Cactus popularity, transport of stolen cactus, cactus theft. Weather radar is a great help to pilots in detecting thunderstorms. However, pilots must be aware that radar does not reliably detect hail. Radar operates by transmitting a pulse of radio energy and receiving the pulse again after it is reflected by a target. Large raindrops, the kind found in intense thunderstorms, are the best radar reflectors and will show up as intense targets on the screen. Hail is somewhat porous and has an uneven structure; it tends to absorb or scatter the radar pulse rather than reflect it back to the antenna. According to the paragraph, weather radar does not reliably detect hail because of A. The size of hail B. Its penetrable surface. C. Faulty pulse transmission by the radar D. Pilot error in reading radar transmissions Ans- B. Its penetrable surface.