Exam Unit 3

The natural chemical or physical processes that breaks down rock on Earth's surface.

• weathering

• erosion

• deposition

• Sediments

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

• weathering
• erosion
• deposition
• dumptruck

Which event breaks rocks down into smaller pieces?

• Sedimentation

• Deposition

• Weathering

• Erosion

What is the process of moving sediments from location to another?

• Deposition

• Erosion

• Weathering

• Compaction

What is sediment?

• the process of rocks being broken down and carried away

• small pieces of rock caused by the weathering of rocks

• the top layer of the soil

• decaying plant or animal material 

Which of these is an example of erosion?

• Light shinning onto a mountain

• Rain breaking down rock

• Wind blowing away sediment

• All of the above

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

Which agents  break down earth materials?

• wind only
• earthquakes and gravity
• ice and 007
• wind, water, and ice

Wind blowing sand from one location to another

• Weathering
• Erosion
• Deposition

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks