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Science Review

Grade 1 · Stretch challenge · 10 questions · Version PG-1CMS2VA-FSI3

1.

What role does a mushroom often have in an ecosystem?

2.

Which gas do humans breathe in for respiration?

3.

What causes sound?

4.

Which organ pumps blood?

5.

Which planet is known for its rings?

6.

What is a food chain's first energy source?

7.

What type of energy is stored in food?

8.

What is an animal that eats plants called?

9.

What structure protects a plant cell but not an animal cell?

10.

What process lets plants make food using light?

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 19
  1. What role does a mushroom often have in an ecosystem?Decomposer
  2. Which gas do humans breathe in for respiration?Oxygen
  3. What causes sound?Vibrations
  4. Which organ pumps blood?The heart
  5. Which planet is known for its rings?Saturn
  6. What is a food chain's first energy source?The Sun
  7. What type of energy is stored in food?Chemical energy
  8. What is an animal that eats plants called?Herbivore
  9. What structure protects a plant cell but not an animal cell?Cell wall
  10. What process lets plants make food using light?Photosynthesis

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.