Grade 2 · Science · Challenge
Free Science Review worksheet - version 6
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-X17BKR-KTCW
1.Which organ pumps blood?
2.What role does a mushroom often have in an ecosystem?
3.What structure protects a plant cell but not an animal cell?
4.What type of energy is stored in food?
5.Which gas do humans breathe in for respiration?
6.What causes sound?
7.Which simple machine is a ramp?
8.Name the three main rock types.
9.What is the freezing point of water in Celsius?
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 6
- Which organ pumps blood?The heart
- What role does a mushroom often have in an ecosystem?Decomposer
- What structure protects a plant cell but not an animal cell?Cell wall
- What type of energy is stored in food?Chemical energy
- Which gas do humans breathe in for respiration?Oxygen
- What causes sound?Vibrations
- Which simple machine is a ramp?Inclined plane
- Name the three main rock types.Igneous, sedimentary, and metamorphic
- What is the freezing point of water in Celsius?0°C
- 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.