Layers Of The Earth Flashcards
Mantle
Below crust -plastic
Crust
Outermost layer – solid
Outer core
Liquid
Inner core
Innermost layer – solid
What pressure is the crust
Very low pressure
What is the crust made of
Oxygen and silicon
Continental crust
Less dense
Oceanic crust
More dense
What is the mantle made of
Silicon, oxygen, aluminum, iron, and magnesium
How much of the earths mass is the core
1/3
Lithosphere
Rock layer
Solid
Includes crust and a part of upper layer of mantle
Asthenosphere
Plastic layer
Mesosphere
Strong lower part of mantle
Largest part of mantle
Why is the inner core a solid when the outer core is a liquid?
Inner core has more pressure than outer
What happens to density as you move from crust to core?
Density increases
What happens to pressure as you move from crust to core?
Pressure increases
What happens to temperature as you move from crust to core?
Temperature increases
Evidence of Pangaea
- Mesosaurus
- Lystrosaurus
- Glacial scars
- Plants and animals
- Rock strata
- Glosopterus
- Coal deposits
