Grade 3 · Science · On Level
Free Science Review worksheet - version 9
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-1AW96R-1OA7
1.What role does a mushroom often have in an ecosystem?
2.Name the three main rock types.
3.What causes sound?
4.Which organ pumps blood?
5.What causes day and night?
6.What structure protects a plant cell but not an animal cell?
7.Which simple machine is a ramp?
8.Which planet is known for its rings?
9.What is a food chain's first energy source?
10.Which gas do humans breathe in for respiration?
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 9
- What role does a mushroom often have in an ecosystem?Decomposer
- Name the three main rock types.Igneous, sedimentary, and metamorphic
- What causes sound?Vibrations
- Which organ pumps blood?The heart
- What causes day and night?Earth's rotation
- What structure protects a plant cell but not an animal cell?Cell wall
- Which simple machine is a ramp?Inclined plane
- Which planet is known for its rings?Saturn
- What is a food chain's first energy source?The Sun
- Which gas do humans breathe in for respiration?Oxygen
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.