PencilGo

Science Review

Grade 2 · On-level practice · 10 questions · Version PG-1B5OZCF-L6W9

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

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 17
  1. Which simple machine is a ramp?Inclined plane
  2. What is water vapor changing to liquid called?Condensation
  3. Why do shadows change during the day?The Sun's apparent position changes
  4. Which organ pumps blood?The heart
  5. What causes day and night?Earth's rotation
  6. What is the freezing point of water in Celsius?0°C
  7. What process lets plants make food using light?Photosynthesis
  8. Name the three main rock types.Igneous, sedimentary, and metamorphic
  9. Which gas do humans breathe in for respiration?Oxygen
  10. What role does a mushroom often have in an ecosystem?Decomposer

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.