Grade 3 · Science · On Level
Free Science Review worksheet - version 20
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-CIRZJU-1OA7
1.What is the freezing point of water in Celsius?
2.What structure protects a plant cell but not an animal cell?
3.What causes day and night?
4.What role does a mushroom often have in an ecosystem?
5.What is an animal that eats plants called?
6.What causes sound?
7.Which organ pumps blood?
8.Which simple machine is a ramp?
9.Which gas do humans breathe in for respiration?
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 20
- What is the freezing point of water in Celsius?0°C
- What structure protects a plant cell but not an animal cell?Cell wall
- What causes day and night?Earth's rotation
- What role does a mushroom often have in an ecosystem?Decomposer
- What is an animal that eats plants called?Herbivore
- What causes sound?Vibrations
- Which organ pumps blood?The heart
- Which simple machine is a ramp?Inclined plane
- Which gas do humans breathe in for respiration?Oxygen
- 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.