Grab the sheet from the front and the brochure Grab the sheet from the front and the brochure. Fill in the blanks on the brochure with the information: Date of visit: 10/20 Fee: $9.00 Your FULL name inside where it says printed student name Read over the brochure when you are done

Weathering, Erosion , & Deposition The Wearing Down and Building Up of Earth

Natural Forces move and deposit sediments The Grand Canyon was formed by the movement of water Water flowed over the land and carried away weather rock and soil This shaped a valley where water flowed creating the canyon

Weathering Weathering is the process by which natural forces break down rocks. The more surface area exposed, the faster weathering happens. There are two types of weathering, mechanical and chemical.

Weathering Mechanical Weathering is the breaking up of rocks by physical forces Ice wedging, pressure release, plant growth, or abrasion Chemical Weathering is the breakdown of rocks by chemical reactions that change the rocks’ composition. Dissolving or rusting

Weathering

Waves and Wind Shape the Land What natural force created these isolated stone pillars? The movement of water (waves). The constant action of waves breaking against the cliffs slowing wore the rock cliff away

Erosion Erosion is the removal of rock particles from a location. Caused by water, wind, ice, or gravity.

WATER EROSION Water sources such as rivers, streams, ocean tides, and runoff can move rock particles away....

Water Erosion-Rivers Rivers and streams carry sediment. As the sediment moves mechanical weathering occurs. Through water erosion, rivers create waterfalls, flood plains, and valleys.

Water Erosion-Waves Waves- waves shape the coasts by transporting sand. While the sand is moved, mechanical weathering occurs. Waves create sea stacks, caves, arch, and wave-cut cliffs.

Erosion by Runoff As water from precipitation (rain, snow, etc.) moves over the land, it carries particles with it. The moving water is called runoff. Runoff creates rills and gullies.

WIND EROSION Sometimes the wind can move rock particles away: this can lead to dust storms!

WIND EROSION Wind Erosion creates dust storms, hoodoos, and arches.

Ice Erosion As a glacier flows over the land, it picks up rocks in a process called plucking.

Ice Erosion Ice erosion creates: U-shaped valleys, glacial lakes, moraines, drumlins, and kettle lakes.

Ice Erosion Ice erosion creates: U-shaped valleys, glacial lakes, moraines, drumlins, and kettle lakes.

Erosion by Gravity Gravity causes sediment to move downhill. It creates: landslides, mudflows, and creeps.

Weathering and Erosion work together continuously to wear down and carry away the rocks at the Earth’s surface!!!!! END - Erosion

Deposition Deposition is the process in which sediment laid down in new locations. Caused by water, wind, ice, and gravity.

Deposition Wind Sand Dune Water *Waves *River *Beaches *Delta Ice Type of Deposition Creates Picture Wind Sand Dune   Water *Waves *River *Beaches *Delta Ice Moraine Gravity Landslide, Slump, Creep

http://studyjams. scholastic http://studyjams.scholastic.com/studyjams/jams/science/rocks-minerals-landforms/weathering-and-erosion.htm

Groups of 3 One person is weathering One person is erosion One person is deposition

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