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Science Review

Grade 5 · On-level practice · 10 questions · Version PG-1JT7OJD-1AF4

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1.What is the difference between weather and climate?
2.What is the role of chlorophyll?
3.Which blood cells fight infection?
4.Why does salt lower water's freezing point?
5.Which layer of Earth is liquid iron and nickel?
6.What evidence shows a chemical reaction occurred?
7.State Newton's third-law force pair when swimming.
8.What is density?
9.What type of boundary forms when plates move apart?
10.What transfers traits from parents to offspring?

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 5
  1. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  2. What is the role of chlorophyll?Absorb light for photosynthesis
  3. Which blood cells fight infection?White blood cells
  4. Why does salt lower water's freezing point?It disrupts ice crystal formation
  5. Which layer of Earth is liquid iron and nickel?Outer core
  6. What evidence shows a chemical reaction occurred?New substances form
  7. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  8. What is density?Mass per unit volume
  9. What type of boundary forms when plates move apart?Divergent boundary
  10. What transfers traits from parents to offspring?Genes

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.