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Science Review

Grade 5 · Building confidence · 10 questions · Version PG-B0J6YB-1K6R

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1.Why are food webs more realistic than single food chains?
2.What evidence shows a chemical reaction occurred?
3.How do greenhouse gases warm Earth?
4.What type of boundary forms when plates move apart?
5.What transfers traits from parents to offspring?
6.What is density?
7.What is the role of chlorophyll?
8.State Newton's third-law force pair when swimming.
9.What cell structure contains genetic material?
10.What does conservation of energy mean?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 7
  1. Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
  2. What evidence shows a chemical reaction occurred?New substances form
  3. How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
  4. What type of boundary forms when plates move apart?Divergent boundary
  5. What transfers traits from parents to offspring?Genes
  6. What is density?Mass per unit volume
  7. What is the role of chlorophyll?Absorb light for photosynthesis
  8. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  9. What cell structure contains genetic material?The nucleus
  10. What does conservation of energy mean?Energy changes form but is not created or destroyed

Worked example

Connect the question to an observable process or scientific model.

Common mistake

Selecting a familiar term without checking its meaning.

Helpful hint

Explain why your answer makes sense.