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Earth, Space & Weather

Grade 4 · Stretch challenge · 8 questions · Version PG-1AMFZ8W-NOAV

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1.Explain “groundwater” in your own words.
2.Explain “front” in your own words.
3.Explain “plate tectonics” in your own words.
4.Explain “watershed” in your own words.
5.Explain “albedo” in your own words.
6.Explain “rain shadow” in your own words.
7.Explain “rock cycle” in your own words.
8.Explain “carbon cycle” in your own words.

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 9
  1. Explain “groundwater” in your own words.water stored in soil and rock below the surface
  2. Explain “front” in your own words.a boundary between air masses
  3. Explain “plate tectonics” in your own words.the movement of large sections of Earth's crust
  4. Explain “watershed” in your own words.land that drains water to the same outlet
  5. Explain “albedo” in your own words.the fraction of incoming light a surface reflects
  6. Explain “rain shadow” in your own words.a dry area on the downwind side of a mountain
  7. Explain “rock cycle” in your own words.processes that transform rocks among major types
  8. Explain “carbon cycle” in your own words.movement of carbon through air, water, organisms, and rock

Worked example

Use observations and long-term patterns to explain Earth systems.

Common mistake

Confusing a short-term weather event with a climate pattern.

Helpful hint

Check the time scale in the question.