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Science Review

Grade 5 · On-level practice · 10 questions · Version PG-T2HVB6-1AF4

1.

How do greenhouse gases warm Earth?

2.

What is density?

3.

What is the pH of a neutral solution?

4.

What is the difference between weather and climate?

5.

Which blood cells fight infection?

6.

Why do seasons occur?

7.

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

8.

What transfers traits from parents to offspring?

9.

What evidence shows a chemical reaction occurred?

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. How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
  2. What is density?Mass per unit volume
  3. What is the pH of a neutral solution?7
  4. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  5. Which blood cells fight infection?White blood cells
  6. Why do seasons occur?Earth's tilt as it orbits the Sun
  7. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  8. What transfers traits from parents to offspring?Genes
  9. What evidence shows a chemical reaction occurred?New substances form
  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.