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Science Review

Grade 5 · Building confidence · 10 questions · Version PG-IF4IL2-1K6R

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

Why do seasons occur?

2.

Which layer of Earth is liquid iron and nickel?

3.

What transfers traits from parents to offspring?

4.

What is the difference between weather and climate?

5.

What is density?

6.

What cell structure contains genetic material?

7.

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

8.

What type of boundary forms when plates move apart?

9.

Which blood cells fight infection?

10.

Why does salt lower water's freezing point?

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 17
  1. Why do seasons occur?Earth's tilt as it orbits the Sun
  2. Which layer of Earth is liquid iron and nickel?Outer core
  3. What transfers traits from parents to offspring?Genes
  4. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  5. What is density?Mass per unit volume
  6. What cell structure contains genetic material?The nucleus
  7. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  8. What type of boundary forms when plates move apart?Divergent boundary
  9. Which blood cells fight infection?White blood cells
  10. Why does salt lower water's freezing point?It disrupts ice crystal formation

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.