
Grade 3 · Science · On Level
Free Science Review worksheet - version 11
Grade 3 science review matched to the learner's current level. This printable version includes 10 grade-appropriate questions and a separate answer sheet.
Science Review
Grade 3 · On-level practice · 10 questions · Version PG-AKRM72-1OA7
1.Why do shadows change during the day?
2.Which gas do humans breathe in for respiration?
3.What is an animal that eats plants called?
4.Which simple machine is a ramp?
5.What type of energy is stored in food?
6.What is water vapor changing to liquid called?
7.What causes day and night?
8.What causes sound?
9.What role does a mushroom often have in an ecosystem?
10.Which planet is known for its rings?
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 11
- Why do shadows change during the day?The Sun's apparent position changes
- Which gas do humans breathe in for respiration?Oxygen
- What is an animal that eats plants called?Herbivore
- Which simple machine is a ramp?Inclined plane
- What type of energy is stored in food?Chemical energy
- What is water vapor changing to liquid called?Condensation
- What causes day and night?Earth's rotation
- What causes sound?Vibrations
- What role does a mushroom often have in an ecosystem?Decomposer
- Which planet is known for its rings?Saturn
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.