Weathering
what is weathering
the breaking down of rocks into smaller pieces where the chemical makeup stays the same.
What is Erosion?
Wearing away and moving of weathered rock and soil
what is a glacier?
Thick mass of ice that covers a large area.
what is wind erosion?
this is when wind picks up materials and carried it from one place to another.
What is mechanical weathering?
Breaking apart of rocks without changing their mineral composition.
what are the 3 stages of a rivers life
young
middle-aged
old
The temperature has to be below freezing
What is the name of the process that causes rocks to change colors?
Oxidation
What is Chemical Weathering?
The breaking apart of rocks caused by a change in their chemical make up.
Name the two young rivers we have currently.
the Yellowstone river and The Niagara River.
In mountain regions.
Mature have more _________? as opposed to young rivers?
curves
What is Oxidation?
The process in which minerals combine with oxygen to form new substances.
Name the two mature rivers we have currently
The Ohio River and The Missouri River.
Where are continental glaciers located?
Near the poles.
Deposition goes out through the ____ of the river?
mouth
Tell me the name of the layers of soil
Topsoil
Sub Soil
Weathered Rocks
What is deposition?
dropping off/deposit of weathered rocks.
What percent of the Earth is covered in glaciers.
10 percent
What are the differences between young and old rivers?
young rivers are more narrow and fast, able to pick up many things along its path.
mature rivers rivers are wider, slower and aren't able to pick up as much as weathered rocks are.