Weathering Notes Weathering: Breaking of rocks into Piece - Sediment.

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Presentation transcript:

Weathering Notes Weathering: Breaking of rocks into Piece - Sediment

Mechanical Weathering: Crushing of Rocks. Chemical Weathering: Dissolving of Rocks.

6 things that Weather Rocks 1. Water 2. Plants 3. Wind 4. Temperature Change 5. Gravity 6. Glaciers

1. Weathering by Water: - Water pounds on rock, or grinds rock with sediment causing it to break. - Water freezes in the cracks of rocks. Expands and cracks the rock. - Water dissolves the minerals out of rocks causing them to weaken and break.

2. Weathering by Plants: Plant roots grow in rocks causing the rocks to crack.

3. Wind Weathering: Carries sediments that get blown into other rocks causing them to chip & break.

4. Temperature Change causes Weathering : Expansion and contraction from temperature change weakens and cracks rocks.

5. Weathering by Gravity: The pull of gravity can weaken and crack the rocks.

6. Glaciers Cause Weathering: Weight of glaciers scratch and crack rocks.

Erosion: Moving Pieces of Sediment

4 Types of Erosion 1. Gravity 2. Water 3. Wind 4. Glaciers

1.Erosion by Gravity - Pulls rocks down hill. Example: Landslides and Slumps Land-slide

2. Water Erosion- Picks up and carries rocks and sediment from place to place. Example: Grand Canyon

3. Wind Erosion – Picks up sand and small rocks and moves it to a different place. Example: Arches National Park

4. Glacial Erosion – Pushes rocks as it moves forward. Example: The Great Lakes and Mountain valleys like Yosemite National Park