Weathering and Erosion

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

• Weathering
• Erosion

What is the process that picks up and moves weathered rocks?

• Erosion
• Landslide
• Weathering

What causes the greatest erosion effect on our beaches?

• Waves
• Gravity
• Glaciers
• Wind

How do plants weather rocks?

• Plants don't weather rocks.
• When roots grow into cracks of rocks and expand the rock breaks.
• When the plant moves water from the roots to the leaves, the rock breaks.

Flood water pounding against a canyon wall and wearing it down is an example of

• Weathering
• Erosion
• An avalanche

Wind blowing sand from one location to another is called

• Weathering
• Erosion

A mudslide flowing down a steep hill is called?

• Weathering
• Erosion

What is the breaking up of rocks into smaller pieces without changing the chemistry of it?

• physical weathering
• chemical weathering

What is the process in which rock is broken down by changes in its chemical makeup?

• physical weathering
• chemical weathering