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Science Review

Grade 5 · On-level practice · 10 questions · Version PG-1IZ8VGG-1AF4

1.

What is the difference between weather and climate?

2.

Why do seasons occur?

3.

What is the pH of a neutral solution?

4.

How do greenhouse gases warm Earth?

5.

What cell structure contains genetic material?

6.

Which layer of Earth is liquid iron and nickel?

7.

Which blood cells fight infection?

8.

What type of boundary forms when plates move apart?

9.

Why does salt lower water's freezing point?

10.

What does conservation of energy mean?

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 6
  1. What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
  2. Why do seasons occur?Earth's tilt as it orbits the Sun
  3. What is the pH of a neutral solution?7
  4. How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
  5. What cell structure contains genetic material?The nucleus
  6. Which layer of Earth is liquid iron and nickel?Outer core
  7. Which blood cells fight infection?White blood cells
  8. What type of boundary forms when plates move apart?Divergent boundary
  9. Why does salt lower water's freezing point?It disrupts ice crystal formation
  10. What does conservation of energy mean?Energy changes form but is not created or destroyed

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.