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Science Review

Grade 3 · On-level practice · 10 questions · Version PG-BEQF9Z-1OA7

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1.What is water vapor changing to liquid called?
2.Which organ pumps blood?
3.What process lets plants make food using light?
4.What is the freezing point of water in Celsius?
5.Name the three main rock types.
6.What role does a mushroom often have in an ecosystem?
7.Which planet is known for its rings?
8.Why do shadows change during the day?
9.Which simple machine is a ramp?
10.Which gas do humans breathe in for respiration?

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 16
  1. What is water vapor changing to liquid called?Condensation
  2. Which organ pumps blood?The heart
  3. What process lets plants make food using light?Photosynthesis
  4. What is the freezing point of water in Celsius?0°C
  5. Name the three main rock types.Igneous, sedimentary, and metamorphic
  6. What role does a mushroom often have in an ecosystem?Decomposer
  7. Which planet is known for its rings?Saturn
  8. Why do shadows change during the day?The Sun's apparent position changes
  9. Which simple machine is a ramp?Inclined plane
  10. Which gas do humans breathe in for respiration?Oxygen

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.