Grade 3 · Science · Challenge
Free Science Review worksheet - version 2
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-1VEB2AO-1LFG
1.What cell structure contains genetic material?
2.Why are food webs more realistic than single food chains?
3.Which layer of Earth is liquid iron and nickel?
4.What is the pH of a neutral solution?
5.What transfers traits from parents to offspring?
6.Which blood cells fight infection?
7.How do greenhouse gases warm Earth?
8.What is density?
9.What evidence shows a chemical reaction occurred?
10.What type of boundary forms when plates move apart?
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 2
- What cell structure contains genetic material?The nucleus
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- Which layer of Earth is liquid iron and nickel?Outer core
- What is the pH of a neutral solution?7
- What transfers traits from parents to offspring?Genes
- Which blood cells fight infection?White blood cells
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- What is density?Mass per unit volume
- What evidence shows a chemical reaction occurred?New substances form
- What type of boundary forms when plates move apart?Divergent boundary
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.