Weathering, Erosion, and Deposition

What natural forces can cause erosion?

• Water, wind, ice, and gravity

• Electricity, magnetism, sound, and light

• Heat, pressure, friction, and tension

• Nuclear forces, chemical reactions, and radiation

What is chemical weathering?

• The physical breakdown of rocks into smaller pieces.

• The process of transporting sediments from one location to another.

• The chemical alteration of minerals in rocks, often due to reactions with water or acids.

• The formation of new minerals from existing ones through heat and pressure.

What is deposition?

• Deposition is the process where eroded materials are dropped off in a new location.

• Deposition is the process of breaking down rocks into smaller pieces.

• Deposition is the process of transporting materials from one place to another.

• Deposition is the process of forming new rocks from molten lava.

Can you give an example of weathering?

• Rainwater seeps into cracks in rocks and freezes, causing the rocks to break apart.

• Wind erosion that removes the topsoil from a field.

• The process of rocks melting due to high temperatures.

• Plants growing in cracks of rocks and breaking them apart.

What role does gravity play in erosion?

• Gravity has no effect on erosion.

• Gravity helps move soil and rock downhill, contributing to erosion.

• Gravity only affects water flow, not erosion.

• Gravity pulls rocks apart, preventing erosion.

What is erosion?

• Erosion is the process by which water, ice, wind, or gravity moves weathered rock and soil from one place to another.

• Erosion is the process of breaking down rocks into smaller pieces without movement.

• Erosion is the accumulation of sediments in a specific area over time.

• Erosion is the process of plants growing and stabilizing soil.

What is mechanical weathering?

• The chemical alteration of rocks due to environmental factors.

• The physical breaking down of rocks without changing their chemical composition.

• The process of rocks melting due to extreme heat.

• The transportation of sediments by wind or water.

What is weathering?

• Weathering is the process of planting trees to prevent soil erosion.

• Weathering is the natural chemical or physical processes that break down rock on Earth's surface.

• Weathering is the movement of rocks from one place to another due to wind.

• Weathering is the process of creating new rocks from molten lava.

How does freezing water cause weathering of rocks?

• Freezing water contracts and strengthens rocks.

• Freezing water expands cracks and breaks rocks.

• Freezing water has no effect on rocks.

• Freezing water melts rocks into soil.

What is an example of erosion caused by water?

• Rain washing away soil from a hill.

• Wind blowing sand dunes across a desert.

• Glaciers carving out valleys over time.

• Earthquakes causing landslides in mountainous regions.