Earth's Changing Surface

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

• weathering
• erosion
• deposition
• dumptruck

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

• weathering
• erosion
• deposition
• jackhammering

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

How is mechanical weathering different from chemical weathering?

• Chemical weathering happens over much shorter time frame than mechanical weathering.
• Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.
• Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.
• Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.

Which of the following actions causes the deposition of sand at a delta?

• river water slowing as it enters the ocean
• salt water & fresh water mixing together
• ocean waves transporting sand toward land
• ocean water slowing as it reaches the coast

What is the movement of soil from one place to another?

• weathering
• deposition
• discharge
• erosion

When would a river form a delta?

• when the river meanders across a plain
• when the river leaves the mountains
• when it is in the mountain
• when it enters the ocean

What is groundwater?

• any form of liquid water
• water that is not moving
• water on Earth's surface
• water below Earth's surface

What would be expected to remove the most sand from a barrier island during a storm?

• waves depositing debris on a island
• currents moving sand along the island
• large waves crashing across the island
• strong winds blowing across the island