6.5 Unit Assessment

An avalanche is an example of which process?

• Weathering
• Erosion
• Deposition
• Volcanic Eruption

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
• Deposition
• Decomposition

Over long periods of time, deposition may change the Earth’s surface by _____.

• forming new land features.
• breaking down large rocks into smaller ones.
• washing away beaches.
• moving topsoil.

A cliff formed near the ocean.  Which statement best describes how this cliff formed?

• Warm air melted the rock.
• Sun rays evaporated the rock.
• Ocean waves washed away rock.
• Plant roots pushed away the rock.

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

• Deposition
• Landslide
• Weathering
• Erosion

Deposition changes the Earth’s surface because bits of broken rock and soil _____.

• stop rivers from flowing.
• make rich farmlands.
• are dropped in new places.
• move very slowly.

What causes the greatest erosion effect on our beaches?

• Waves
• Gravity
• Glaciers
• Wind

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

• Weathering
• Erosion
• Deposition
• Crop Rotation

Which of these is an example of erosion?

• Light shining onto a mountain.
• Rain breaking down rocks on a mountain into smaller pieces. 
• Wind blowing away sediment to a new place on the mountain.
• All of the above.