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Science Review

Grade 5 · On-level practice · 10 questions · Version PG-1KX63B9-1AF4

1.

Which blood cells fight infection?

2.

What is density?

3.

What is the difference between weather and climate?

4.

Why does salt lower water's freezing point?

5.

What does conservation of energy mean?

6.

What transfers traits from parents to offspring?

7.

Which layer of Earth is liquid iron and nickel?

8.

What type of boundary forms when plates move apart?

9.

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

10.

What is the pH of a neutral solution?

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 1
  1. Which blood cells fight infection?White blood cells
  2. What is density?Mass per unit volume
  3. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  4. Why does salt lower water's freezing point?It disrupts ice crystal formation
  5. What does conservation of energy mean?Energy changes form but is not created or destroyed
  6. What transfers traits from parents to offspring?Genes
  7. Which layer of Earth is liquid iron and nickel?Outer core
  8. What type of boundary forms when plates move apart?Divergent boundary
  9. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  10. What is the pH of a neutral solution?7

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.