Presentation is loading. Please wait.

Presentation is loading. Please wait.

Weathering and Erosion

Similar presentations


Presentation on theme: "Weathering and Erosion"— Presentation transcript:

1 Weathering and Erosion

2 Weathering The breakdown of the materials of Earth’s crust into smaller pieces.

3 The Agents of Weathering
Ice Plant roots Friction and impact Burrowing of animals Temperature changes Water Oxygen Carbon dioxide Living organisms Acid rain

4 Frost Wedging (Ice)

5 Plant Roots

6 Burrowing of Animals

7 Temperature Changes

8 Water Water weathers rock by dissolving it

9 Oxygen Iron combines with oxygen in the presence of water in a processes called oxidation The product of oxidation is rust

10 Carbon Dioxide CO2 dissolves in rain water and creates carbonic acid
Carbonic acid easily weathers limestone and marble

11 Living Organisms Lichens that grow on rocks produce weak acids that chemically weather rock

12 Acid Rain Compounds from burning coal, oil and gas react chemically with water forming acids. Acid rain causes very rapid chemical weathering

13 Erosion The process by which water, ice, wind or gravity moves fragments of rock and soil.

14 Water Erosion Rivers, streams, and runoff

15 Ice Erosion Glaciers

16 Wind Erosion


Download ppt "Weathering and Erosion"

Similar presentations


Ads by Google