Weathering
What are the two types of weathering?
What is physical and chemical?
Erosion is like a ______________________________
Dump truck moving the material from one location to another.
When the wind stops blowing _____________ happens.
Deposition
How deep was the water that followed across Washington state?
800 ft.
What state is Challis in?
Idaho
Weathering is the__________ down of rocks and soil.
What is breaking?
Erosion ___________ pieces of the Earth from one location to another.
Moves
What landform is created by deposition at a river's mouth?
Delta
Who proposed the theory that the Scablands were formed by a massive flood.
Jay Harlan Brett
What is the population of Challis?
944 (2024)
Weathering is like a ___________.
What is sledge hammer?
Erosion always happens very quickly. True or false
False
Boulders or debris that are left by glaciers are know as _________ __________.
Glacial moraine
What evidence did scientist find that suggested more than on giant flood occurred?
Ash layers from Mount St. Hellens
Who founded Challis?
Alvah Challis
What are the four agents of chemical weathering?
What is acid rain, moss/lichen, water, and oxygen
What factors influence the rate of erosion?
Vegetation, climate, water
Would larger dense or smaller dense particles be deposited faster?
Larger
Where are the Scablands located?
Washington State
When was Challis founded?
1876
What are the seven agents of physical weathering?
Water, Wind, ice, animals, gravity, temperature changes and plant roots
What are the four major agents of erosion?
Water, wind, ice and gravity
What three factors affect the rate of deposition?
Size, shape, density
What is suggested to have created the potholes in the scablands?
Challis is the gateway to what wilderness area?
Frank Church