Core
The solid center of Earth
This layer of the mantle is hot, flexible, and under great pressure
Lower mantle
Name two kinds of crust (not pizza)
continental and oceanic
The second fastest seismic waves
S-waves
The thin, hard, outer layer of the Earth
the crust
The liquid later of Earth's core
Outer core
This mantle layer is predominately made of solid rock
Upper mantle
The crust on which the continents rest
Continental crust
The fastest seismic waves
P-waves
How many layers of oceanic crust are there?
Three
Why is the inner core solid even though it is so hot?
There is immense pressure on the inner core
This layer is partially flexible
Transition zone
ancient land masses made of crystalline rocks
Shields
What state(s) of matter do S waves travel through?
Solids
The diameter of the core is slightly bigger than what?
The diameter of mars
Heat inside of the core causes metals like iron to move within the Earth. What does this create?
The magnetosphere
The ability of the rock to flow and change shape
Plasticity
Eroded shields are called what?
Platforms
What state(s) of matter do P waves travel through?
Solids, liquids, and gases
This layer makes up the majority of the Earth's volume and mass
the mantle
What is the inner core made of?
Iron-nickel alloy
Explain how convection currents occur in the Earth's mantle
Magma that is heated by the core becomes less dense and rises toward the crust. When near the crust, the magma cools and falls back near the core
What are the most common elements in the Earth's crust?
Silicon and oxygen
What are seismic waves caused by?
Earthquakes
How does the magnetosphere protect the earth?
It shields earth from solar winds