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1Which of the following is an example of an inherited trait, passed from parent to offspring, rather than a learned behavior?
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Answer: skin pattern
"Skin pattern" is an inherited trait determined by genetics. The other choices describe behaviors that are learned through experience or practice.
2Which statement below is accurate?
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Answer: A ice cube is an example of solid.
The accurate statement is: "A ice cube is an example of solid." The remaining statements each contain an inaccuracy.
3Which statement below is accurate?
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Answer: Metamorphic rock forms when existing rock is changed by intense heat and pressure.
The accurate statement is: "Metamorphic rock forms when existing rock is changed by intense heat and pressure." The remaining statements each contain an inaccuracy.
4What is the main cause of the four seasons on Earth?
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Answer: Earth's axis is tilted as it orbits the Sun
Seasons are caused by the tilt of Earth's axis (about 23.5 degrees) combined with Earth's yearly orbit around the Sun, which changes how directly sunlight strikes different parts of Earth.
5Which of these best explains why oceans are important to the water cycle?
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Answer: They hold most of Earth's water and are a major source of evaporation
Oceans contain most of Earth's water and provide a large surface area where evaporation occurs, supplying much of the water vapor that drives the water cycle.
6When it is summer in the Northern Hemisphere, what season is it in the Southern Hemisphere?
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Answer: Winter
The two hemispheres experience opposite seasons because when one hemisphere is tilted toward the Sun, the other is tilted away from it.
7In a food chain of grass → grasshopper → frog → snake, what would likely happen to the snake population if the frog population suddenly disappeared?
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Answer: The snake population would likely decrease because it loses a main food source
Losing frogs removes a key food source for snakes, so the snake population would likely decrease.
8Which of the following statements is TRUE?
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Answer: A a wooden block is an example of solid.
The true statement is supported by established science content: "A a wooden block is an example of solid." The other statements contain inaccuracies.
9Which state of matter best describes carbon dioxide bubbles in soda?
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Answer: gas
A carbon dioxide bubbles in soda is an example of gas, since it has the defining properties of that state of matter.