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Earth & Space ScienceGrade 6-8

Weathering and Erosion Answer Key

See how rocks break down over time and how sediment is transported and deposited.

Looking for Weathering and Erosion answers? This complete answer key provides verified solutions for all student exploration activities and assessment questions in the ExploreLearning Weathering and Erosion Gizmo.

100% Free • Step-by-step explanations • Perfect for homework help • Covers all activities • Updated for 2026

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Breaking Down Rocks

Q1.What's the difference between weathering and erosion?

Answer

Weathering breaks rocks into smaller pieces. Erosion moves those pieces to new locations.

Q2.What's mechanical weathering?

Answer

Physical breakdown without changing the rock's composition - like ice wedging, plant roots, or temperature changes.

Q3.What's chemical weathering?

Answer

When the rock's minerals change through chemical reactions - like rust forming on iron or acid rain dissolving limestone.

Moving Sediment

Q4.What causes erosion?

Q5.What's deposition?

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