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Science Review

Grade 5 · Building confidence · 10 questions · Version PG-JJ2XCY-1K6R

Children investigate a leaf and a frog with a caregiver beside a pond.
1.

What transfers traits from parents to offspring?

2.

Which layer of Earth is liquid iron and nickel?

3.

What is the role of chlorophyll?

4.

Why does salt lower water's freezing point?

5.

What type of boundary forms when plates move apart?

6.

How do greenhouse gases warm Earth?

7.

State Newton's third-law force pair when swimming.

8.

Which blood cells fight infection?

9.

Why do seasons occur?

10.

Why are food webs more realistic than single food chains?

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 13
  1. What transfers traits from parents to offspring?Genes
  2. Which layer of Earth is liquid iron and nickel?Outer core
  3. What is the role of chlorophyll?Absorb light for photosynthesis
  4. Why does salt lower water's freezing point?It disrupts ice crystal formation
  5. What type of boundary forms when plates move apart?Divergent boundary
  6. How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
  7. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  8. Which blood cells fight infection?White blood cells
  9. Why do seasons occur?Earth's tilt as it orbits the Sun
  10. Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators

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.