Weathering and Erosion

Water, wind, gravity, ice, plants are all part of this kind of weathering

• Chemical

• Mechanical

Earth's surface features are continually changing... this is due to

• wearing away of the surface
• building up of the surface
• Both wearing away and building up

When rocks are broken down into smaller pieces

• erosion
• weathering
• sediment

Water getting into cracks, freezing, and breaking the rocks or pavement apart

• Weathering
• Erosion

Roots break apart a side walk

• Chemical weathering
• Physical weathering

Soil is a mixture of the following except

• weathered rock particles

• dead plant material

• garbage

• dead animal material

Flood waters moving soil from one location to another

• Weathering
• Erosion

Carbon dioxide in rainwater dissolves limestone

• Chemical weathering
• Mechanical weathering

When water, ice and wind move particles of rock and soil from one place to another

• sediment
• weathering
• erosion

Erosion caused by _______________ changes beaches and lakes

• glaciers
• ice
• waves