Grade 2 · Science · Challenge
Free Science Review worksheet - version 12
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-MRNGD4-KTCW
1.Why do shadows change during the day?
2.What is an animal that eats plants called?
3.Which gas do humans breathe in for respiration?
4.Which organ pumps blood?
5.Which simple machine is a ramp?
6.What role does a mushroom often have in an ecosystem?
7.What is the freezing point of water in Celsius?
8.What causes day and night?
9.What is water vapor changing to liquid called?
10.What causes sound?
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 12
- Why do shadows change during the day?The Sun's apparent position changes
- What is an animal that eats plants called?Herbivore
- Which gas do humans breathe in for respiration?Oxygen
- Which organ pumps blood?The heart
- Which simple machine is a ramp?Inclined plane
- What role does a mushroom often have in an ecosystem?Decomposer
- What is the freezing point of water in Celsius?0°C
- What causes day and night?Earth's rotation
- What is water vapor changing to liquid called?Condensation
- What causes sound?Vibrations
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.