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Science Review

Grade 5 · Building confidence · 10 questions · Version PG-JT2J1X-1K6R

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

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

2.

What is the difference between weather and climate?

3.

Why does salt lower water's freezing point?

4.

What is the pH of a neutral solution?

5.

What evidence shows a chemical reaction occurred?

6.

What type of boundary forms when plates move apart?

7.

What is density?

8.

Which layer of Earth is liquid iron and nickel?

9.

What does conservation of energy mean?

10.

Which blood cells fight infection?

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 12
  1. State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
  2. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  3. Why does salt lower water's freezing point?It disrupts ice crystal formation
  4. What is the pH of a neutral solution?7
  5. What evidence shows a chemical reaction occurred?New substances form
  6. What type of boundary forms when plates move apart?Divergent boundary
  7. What is density?Mass per unit volume
  8. Which layer of Earth is liquid iron and nickel?Outer core
  9. What does conservation of energy mean?Energy changes form but is not created or destroyed
  10. Which blood cells fight infection?White blood cells

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.