2. The Changing Earth

3. Chapter Fourteen: Weathering and Erosion 14.1 Weathering 14.2 Erosion 14.3 Rivers Shape the Land

4. 14.3 Rivers shape the land Erosion by rivers is an important part of why land looks the way it does at any given time. Valleys are low-lying land features that are surrounded by higher land features such as hills and mountains.

5. 14.3 Rivers shape the land Glaciers scrape U-shaped valleys through land areas. Rivers tend to cut V-shaped valleys.

6. 14.3 Meanders Some rivers form S-shaped curves called meanders. Water flows at different speeds in different parts of the river.

8. 14.3 Meanders A braided stream has many channels that criss-cross each other. Braided streams get their names from the braided appearance of their many channels.

10. Art Connection Potters have been molding clay into pots and other items since the Stone Age. Today, it is used to produce ceramic tiles, porcelain, cement, and more. Creative Expression with Clay

11. Activity With your whole class, a small group, or a partner, examine your school and the surrounding grounds for evidence of mechanical and chemical weathering. Wearing Away