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1Which of the following statements is TRUE?
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Answer: Plant roots grow into a rock and split it apart over time. This is an example of weathering.
The true statement is: "Plant roots grow into a rock and split it apart over time. This is an example of weathering." The other statements contain inaccuracies.
2What do we call a baby cow?
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Answer: a calf
A baby cow is a calf.
3Which statement below is accurate?
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Answer: A guitar string that vibrates quickly produces a higher pitch.
The accurate statement is: "A guitar string that vibrates quickly produces a higher pitch." The remaining statements each contain an inaccuracy.
4Solar energy is best classified as which type of natural resource?
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Answer: renewable
Solar energy is a renewable resource because sunlight is continuously available and does not run out.
5In the rock cycle, which process most directly follows "compaction and cementation"?
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Answer: heat and pressure
In the rock cycle, heat and pressure generally follows compaction and cementation.
6Which is the best example of a food chain?
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Answer: seed → mouse → snake → hawk
Arrows go from food to eater.
7Which has a fixed volume but no fixed shape?
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Answer: a liquid
Liquids keep their volume.
8Which of the following statements is TRUE?
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Answer: A inclined plane is a flat, sloped surface that reduces the force needed to raise an object.
The true statement is: "A inclined plane is a flat, sloped surface that reduces the force needed to raise an object." The other statements contain inaccuracies.
9Birds flying south for the winter is called
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Answer: migration
Migration is moving to another area for the season.
10Which simple machine is illustrated by an axe head or a doorstop?
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Answer: wedge
An axe head or a doorstop illustrates a wedge, which is two inclined planes joined together to split or cut objects apart.