Grade 2 · Science · Challenge
Free Science Review worksheet - version 15
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-OPKO7X-KTCW
1.What causes day and night?
2.What is a food chain's first energy source?
3.Which gas do humans breathe in for respiration?
4.What structure protects a plant cell but not an animal cell?
5.Which organ pumps blood?
6.What type of energy is stored in food?
7.What is the freezing point of water in Celsius?
8.What process lets plants make food using light?
9.What is an animal that eats plants called?
10.What role does a mushroom often have in an ecosystem?
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 15
- What causes day and night?Earth's rotation
- What is a food chain's first energy source?The Sun
- Which gas do humans breathe in for respiration?Oxygen
- What structure protects a plant cell but not an animal cell?Cell wall
- Which organ pumps blood?The heart
- What type of energy is stored in food?Chemical energy
- What is the freezing point of water in Celsius?0°C
- What process lets plants make food using light?Photosynthesis
- What is an animal that eats plants called?Herbivore
- What role does a mushroom often have in an ecosystem?Decomposer
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.