Grade 3 · Science · Building Confidence
Free Science Review worksheet - version 1
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 · Building confidence · 10 questions · Version PG-1MZH7LZ-120T
1.Which gas do humans breathe in for respiration?
2.What type of energy is stored in food?
3.What causes day and night?
4.What is the freezing point of water in Celsius?
5.Which organ pumps blood?
6.Which simple machine is a ramp?
7.What is water vapor changing to liquid called?
8.What is a food chain's first energy source?
9.What causes sound?
10.Why do shadows change during the day?
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 1
- Which gas do humans breathe in for respiration?Oxygen
- What type of energy is stored in food?Chemical energy
- What causes day and night?Earth's rotation
- What is the freezing point of water in Celsius?0°C
- Which organ pumps blood?The heart
- Which simple machine is a ramp?Inclined plane
- What is water vapor changing to liquid called?Condensation
- What is a food chain's first energy source?The Sun
- What causes sound?Vibrations
- Why do shadows change during the day?The Sun's apparent position changes
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.