Grade 2 · Science · Challenge
Free Science Review worksheet - version 19
Grade 2 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 2 · Stretch challenge · 10 questions · Version PG-LDPFW9-KTCW
1.Why do shadows change during the day?
2.Which simple machine is a ramp?
3.What type of energy is stored in food?
4.Which organ pumps blood?
5.What causes sound?
6.Which gas do humans breathe in for respiration?
7.What is a food chain's first energy source?
8.Name the three main rock types.
9.What structure protects a plant cell but not an animal cell?
10.What causes day and night?
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 19
- Why do shadows change during the day?The Sun's apparent position changes
- Which simple machine is a ramp?Inclined plane
- What type of energy is stored in food?Chemical energy
- Which organ pumps blood?The heart
- What causes sound?Vibrations
- Which gas do humans breathe in for respiration?Oxygen
- What is a food chain's first energy source?The Sun
- Name the three main rock types.Igneous, sedimentary, and metamorphic
- What structure protects a plant cell but not an animal cell?Cell wall
- What causes day and night?Earth's rotation
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.