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Science Review

Grade 5 · On-level practice · 10 questions · Version PG-ROJUUB-1AF4

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1.Why are food webs more realistic than single food chains?
2.What is the difference between weather and climate?
3.State Newton's third-law force pair when swimming.
4.What cell structure contains genetic material?
5.What is density?
6.What type of boundary forms when plates move apart?
7.What evidence shows a chemical reaction occurred?
8.What is the role of chlorophyll?
9.What is the pH of a neutral solution?
10.Why does salt lower water's freezing point?

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 14
  1. Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
  2. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  3. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  4. What cell structure contains genetic material?The nucleus
  5. What is density?Mass per unit volume
  6. What type of boundary forms when plates move apart?Divergent boundary
  7. What evidence shows a chemical reaction occurred?New substances form
  8. What is the role of chlorophyll?Absorb light for photosynthesis
  9. What is the pH of a neutral solution?7
  10. Why does salt lower water's freezing point?It disrupts ice crystal formation

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.