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Lesson 8 of 84 · Weathering and Erosion
LessonThe Rock Cycle
What You'll Learn
Erosion moves weathered rock and soil from one place to another by water, wind, ice, or gravity. Rivers carve valleys, wind shapes sand dunes, and glaciers grind mountains.
Key Words
- weathering
- erosion
- sediment
Steps
Step 1 — Read
Read the introduction and identify the main idea of this lesson.
Step 2 — Do
Investigate soil layers: fill a jar with soil and water, shake it, and let it settle overnight. Identify the layers of clay, silt, sand, and organic matter.
Step 3 — Observe
Observe what happens and describe it in detail.
Step 4 — Record
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What is the rock cycle?