Layers in General
Crust
Mantle
Core
Random
100
There are _____ main layers of Earth
Three
100
Crust is the layer of rock that forms on Earths ______ skin.
Outer
100
The mantle is _____ ( solid, liquid, gas )
solid
100
The core is separated into two parts the ______ core and the ______ core.
outer; inner
100
The deeper down inside earth the _______ the pressure.
Greater
200
Name the 3 main layers of the Earth
Crust, Mantle, Core
200
Crust that lies beneath the ocean is called _________ crust.
Oceanic just like crust that lies beneath land is continental crust.
200
Heat form the core causes ________ currents in the mantle.
Convection,even though it is solid over millions of years the rock slowly moves. These convection currents are what cause plate tectonics.
200
The outer core is ______, the inner core is ____ (liquid,solid,gas)
outer core is liquid, inner core is solid.
200
The temperature inside Earth ______ as depth increases.
Increases
300
Why are the layers of Earth separated?
Because they all have different charecteristics
300
The crust is much ______ than the layer that lies beneath it.
Thinner. The crust is much thinner the mantle.
300
What are the 3 layers of the mantle?
Lithosphere, Asthenosphere, Mesosphere
300
Which part of the core is most dense?
The inner core is more dense than the outer core.
300
What are the two types of evidence used to learn about Earths interior?
Direct Evidence and Indirect Evidence
400
Each of Earth's layers covers the layers ________ it.
Beneath because the crust covers the mantle and the mantle covers the core
400
The crust is a layer of solid rock that includes both dry land and the ______ floor
Ocean
400
The outer most layer of Earths mantle is the _________
lithosphere
400
Why is the inner core so dense?
Because all of the layers are putting pressure on it so it is very compact.
400
Rock samples are an example of ________ evidence
Direct
500
The layers vary greatly in _____, ______, ______, and ______. Name 3 out of these 4 charecteristics
Size, Composition, Temperature, and Pressure are the main 4 characteristics that the layers vary in.. They are different sizes, all made up of different things, all have a different temperatures, and they all have different amount of pressure.
500
Crust is the thickest under high __________
Mountains because there is more land under mountains so the crust is thicker. The crust thinnest under the deep ocean floor.
500

The soft layer of Earths mantle that is not completely melted is the _______

Asthenoshpere

500
The core is mainly made out of the metals ____ and _____. ( only have to fill in one of the blanks )
Iron and nickel
500
Seismic waves are an example of _________ evidence
Indirect
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