Weathering & Mass Movement

The process that breaks down rocks and other materials on Earth's surface is called

• weathering
• erosion
• soil conservation
• decomposition

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

The formation of stalactites and stalagmites in a cave as water mixed with carbon dioxide creates carbonic acid, which dissolves away the limestone, is an example of:

• mechanical weathering
• chemical weathering

The slowest type of mass movement is called a _____________________.

• avalanche

• soil creep

• landslide

• mudflow

Weathering is the _____________ rock.

• bending

• moving

• melting

• breaking down

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

What is regolith?

• Steepness of the slope

• Loose earth material produced by weathering and erosion

• Plants, grass, shrubs

• Series of steps formed as a result of soil creep

Gradient, water content, animals, vegetation and _____________ influence mass movement.

• Steepness of slope

• Plants and shrubs

• Human activity

• Terracettes

What is the fastest form of mass movement?

• Soil creep

• Mudflow

• Avalanche

• Landslide