Weathering, Erosion, and Deposition flashcards

Front

The breaking down of rocks into smaller pieces by wind, water, ice, or plants.

Back

Weathering

Front

The movement of rocks, soil, or sand from one place to another by wind, water, or ice.

Back

Erosion

Front

The dropping or settling of sediments in a new location after being carried by erosion.

Back

Deposition

Front

Rocks break apart without changing what they are made of.

Back

Physical Weathering (Mechanical)

Front

- Ice-breaking rocks (freeze-thaw cycle) - Wind blowing sand against rocks - Tree roots cracking sidewalks

Back

Examples of Physical Weathering

Front

Rocks break down because of chemical changes; can be due to carbon dioxide in acid rain

Back

Chemical Weathering

Front

- Acid rain dissolving rocks - Rust forming on iron-rich rocks

Back

Examples of Chemical Weathering

Front

- Water (rivers, rain, ocean waves) - Wind (dust storms, sand dunes) - Ice (glaciers moving rock) - Gravity (landslides, rockfalls)

Back

Causes of Erosion

Front

- Sand dunes forming from windblown sand - River deltas forming at the mouth of rivers - Beaches forming from waves carrying sand

Back

Examples of Deposition

Front

The process of breaking down rocks into smaller pieces.

Back

Weathering