Students investigate the processes of weathering and erosion. They rub two rocks together and observe how each weathers. Then they observe how moving water causes weathered material to erode. They also simulate how wind causes erosion.

Student Resources

• 3.1 Vocabulary
• 3.2 Section 3 Assessment

Learn by Reading

For additional content-area reading, check out the Houghton Mifflin Science eBook: Grade 2, Unit C, pages 16–18.