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Science Review

Grade 2 · On-level practice · 10 questions · Version PG-1JU7K9O-L6W9

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1.Which organ pumps blood?
2.What structure protects a plant cell but not an animal cell?
3.What role does a mushroom often have in an ecosystem?
4.What type of energy is stored in food?
5.What is the freezing point of water in Celsius?
6.What is an animal that eats plants called?
7.What causes sound?
8.What process lets plants make food using light?
9.What causes day and night?
10.What is a food chain's first energy source?

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 3
  1. Which organ pumps blood?The heart
  2. What structure protects a plant cell but not an animal cell?Cell wall
  3. What role does a mushroom often have in an ecosystem?Decomposer
  4. What type of energy is stored in food?Chemical energy
  5. What is the freezing point of water in Celsius?0°C
  6. What is an animal that eats plants called?Herbivore
  7. What causes sound?Vibrations
  8. What process lets plants make food using light?Photosynthesis
  9. What causes day and night?Earth's rotation
  10. What is a food chain's first energy source?The Sun

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.