Weathering
What is weahtering?
the breaking down of rocks
What is deposition?
dropping off weathered rock
What is a landform?
A natural feature of Earth's surface
Physical & chemical
What is erosion?
Carrying away weathered rock
How can running water change land?
Running water cuts away land along their sides and carry away sediments.
What is chemical weathering?
What is one way farmers save soil and erosion?
How can wave change lands?
Waves moving at cuffs can break off large chunks of rock off its bottom and hollow out the base of the cliff.
How do physical & chemical weathering affects rocks in the same way?
It causes Earth's rock to break apart into smaller pieces.
What is physical weathering?
breaking down rocks without changing the rock material
What was the big event where lots of soil eoded and affected plants, animals, and farmers?
The Dust Bowl
How does wind change land?
Wind can blow sand into hills called sand dunes.
How do natural processes create landforms?
Wind, waves, and water weather and erode Earth's surface.
What is abrasion?
What is exfoliation?
Abrasion: sharp edges of blowing sand wearing rocks away.
Exfoliaton: weathering that causes layers of rock to peel like an onion.
What's the method that farmers use to plaw across slopes rather than up and down?
Contour plowing
How can ice change land?
How do erosion and deposition affect the land?
It changes land by moving rocks and soil form one play and depositing it in another.