Show:
Changing Earth's Surface
Water Erosion
The Force of Moving Water
Glaciers and Waves
Wind
100
What are the four types of mass movements?
Landslides, mudflows, slump and creep.
100
What is runoff?
The water that moves over Earth's surface.
100
What is the amount of sediment that a river carries called?
A load.
100
What are the two types of glaciers.
Valley and continental.
100
What is a sand dune?
A deposit of wind blown sand.
200
What is the force that moves rock and other materials downhill?
Gravity.
200
What is an oxbow lake?
A meander that has been cut-off from the river.
200
What three elements affect the river's flow and how much sediment it can erode?
A river's slope. the volume of flow, and the shape of it's streambed.
200
Where does the wave's energy come from?
It comes from wind that blows across the water's surface.
200
Wind causes erosion by...? **Hint: two things**
Abrasion and deflation.
300
What is deposition?
The process where agents of erosion lay down sediment in new locations.
300
What are the two cave formations? **Hint: ground and ceiling**
Ceiling: stalactite. Ground: Stalagmite.
300
What is abrasion?
The wearing away of rock by grinding.
300
Where can glaciers form?
In areas that snow falls more than it melts.
300
What is deflation?
The process where wind moves surface materials.
400
What acts together in a cycle that wears down and builds up Earth's surface?
Weathering, erosion, and deposition.
400
What is a region in which a layer of limestone close to the surface creates deep valleys, caverns, and sinkholes?
Karst topography.
400
Where does the sediment erode from in the river? **Hint: two places!**
The bottom and the sides.
400
How do sea arches form?
When sea caves on either side of a headland join.
400
What do wind erosion and deposition form?
Sand dunes and loess deposits.
500
What is the most destructive type of mass movement?
Landslides.
500
Where does most rain/runoff return?
It returns to the atmophere by evaporation.
500
What happends as gravity pulls water down a slope?
The potential energy turns into kinetic energy.
500
What is the time period where a continental glacier covers a large parts of the Earth's surface?
Ice Age.
500
What are the causes of desert landforms?
Weathering and erosion. **not wind!