| Mantle | Core | Crust | General |
|---|---|---|---|
|
What is the mantle?
A mantle is a hot solid rock.
|
To how many parts is the core divided into? What are they called?
2 parts; the outer core and the inner core.
|
What is the state of matter of crust?
Solid.
|
(true or false) Earth's surface doesn't change.
False, Earth's surface constantly changes.
|
|
What is the mantle made out of?
Boundary and rock.
|
What is the core made out of?
Iron and nickel.
|
What is the crust made out of?
Rock.
|
What do geologists study?
They study what is inside the Earth.
|
|
The mantle is divided into layers by _____________.
Physical characteristics.
|
What is the state of matter of the outer core?
Liquid.
|
What is crust?
Crust is the layer of rock that forms Earth's outer skin.
|
(true or false) The temperature increase when you get closer to the center of the Earth.
True
|
|
How thick is the mantle?
About 3000 km.
|
What is the state of matter of the inner core?
Solid.
|
How thick is the crust?
5-70 km.
|
The pressure decreases as you go deeper in Earth.
False, the pressure increases as you go deeper in Earth.
|
|
The upper part of the mantle and the crust together form the ______ which is ____ km thick.
... form the lithosphere which is 100 km thick.
|
Why is the inner core solid?
The inner core has too much pressure inside it to become a liquid; it squeezes the atoms of the iron and nickel so that they cannot spread out and become liquid.
|
Seismic waves are created by _____________.
Earthquakes.
|
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