Changing Earth’s Surface
What are erosion and deposition?
Erosion - the movement of weathered rock and soil from one place to another
Deposition - sediment being laid down in a new location
What is the major agent of erosion that has changed Earth’s surface?
Water
Define abrasion.
The wearing away of rock by other rock particles
Name the two types of glaciers.
Valley and continental
Where does the energy in waves come from?
wind
True or false: Wind causes most of the erosion in the desert.
False, still water
What is sediment?
Debris caused by the weathering of rock
What is a tributary?
A stream or river that flows into another river.
What are the two types of energy?
Potential and kinetic
What is an ice age?
A time where the Earth is covered by glaciers and the temperature is lower than normal
Waves erode the coast by impact and ????
abrasion
What is a sand dune?
A deposit of wind blown sand
Name the four types of mass movement.
Slump, creep, landslide, mudslide
What landform is created when a river flows into an ocean or lake.
Delta
What do we call the amount of sediment a river carries?
Load
What are the two processes that glaciers use to erode land?
abrasion and plucking
Name two landforms created by wave erosion.
Sea stack, sea arch, wave cut cliff, headland, sea cave
What is deflation?
Erosion caused by the wind
Name the three steps of the erosion cycle.
Weathering, erosion, deposition
Name three landforms created by river erosion.
Waterfalls, valleys, flood plains, oxbow lakes, meanders
What three factors affect how fast a river flows?
Shape, slope, volume
Name two landforms created by the melting of glaciers.
Moraine, till, kettle, prairie pothole, u-shaped valley
What two types of landforms are created by wave deposition?
spit, beach, sandbar, barrier beach
What two landforms are created by wind deposition?
sand dunes, loess deposits