Constructive and Destructive Processes

What is a destructive force?

• A natural process that destroys land
• A natural process that creates land
• A natural process where areas that are normally dry is covered in water

A constructive force is defined as

• a natural occurrence that can build up or break down
• an earthquake or a volcano
• a natural force that builds up and creates new land
• a destructive force that has been controlled

When the material that is worn down is carried away by wind, moving water, ice, living beings or gravity.

• Weathering 
• Erosion
• Deposition

When those materials stop moving and build up somewhere else.

• Weathering
• Erosion
• Deposition

A hill of sand, made and shaped by wind.

• Sand Dune
• Delta
• Fault
• Volcano

An area of new land at the mouth of a river.

• Sand Dune
• Delta
• Fault
• Glacier

A shaking of Earth’s surface, caused by movement of rock in the crust.

• Earthquake
• Volcano
• Tsunami

A mountain that forms as molten rock flows through a crack into Earth’s surface.

• Volcano
• Earthquake
• Hill
• Sand Dune

 Deposition is a process that

• Dissolves sediment
• Breaks down rock to form sediment
• Removes sediment from land forms
• Drops sediment to form landforms

Where do deltas form?

• Desert Areas
• At river mouths
• On the Banks of Rivers
• In Valleys Formed by Glaciers