Grade 3 · Science · Challenge
Free Science Review worksheet - version 18
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 · Stretch challenge · 10 questions · Version PG-GTJOQB-1LFG
1.What is the role of chlorophyll?
2.State Newton's third-law force pair when swimming.
3.What is the difference between weather and climate?
4.What type of boundary forms when plates move apart?
5.What transfers traits from parents to offspring?
6.Why do seasons occur?
7.Why are food webs more realistic than single food chains?
8.Which blood cells fight infection?
9.What cell structure contains genetic material?
10.Which layer of Earth is liquid iron and nickel?
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 18
- What is the role of chlorophyll?Absorb light for photosynthesis
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- What type of boundary forms when plates move apart?Divergent boundary
- What transfers traits from parents to offspring?Genes
- Why do seasons occur?Earth's tilt as it orbits the Sun
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- Which blood cells fight infection?White blood cells
- What cell structure contains genetic material?The nucleus
- Which layer of Earth is liquid iron and nickel?Outer core
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.