Layers of the Earth 1
Layers of the Earth 2
Earth's Crust
Earth Layers Facts
100
What state of matter is the crust?
solid
100
what state of matter is the outer core?
liquid
100
What layer of the earth do we live on?
the crust
100
How many layers does the earth have?
4
200
What state of matter is the outer core?
liquid
200
Which state(s) of matter is the mantle?
the mantle is solid and liquid.
(solid on top, liquid under)
200
The crust is made of _____________.
rock
200
The earth's atmosphere is a layer of ___________ around the earth
gas
300
have people gone to the inner core? Why or Why not
No, it is too hot. People would not breathe oxygen and die.
300
The temperature of the crust is between ___________ degrees celsius.
0-1,000 degrees
300
What are the two types of crust?
continental and oceanic crusts
300
The earth's atmosphere has a __________ density because it is a gas.
low
400
True or False: The inner core is made of iron and nickel?
true
400
Which layer(s) have silicon in them?
Silicon 
crust, mantle
400
Which crust is heavier and sits lower? (It is the rock that sits under the ocean)
oceanic crust
400
The earth's crust has a ______________ density because it is a solid.
high
500
Starting from the crust, name all layers in order.
crust, mantle, outer core, inner core
500
Which layer is 1,216 km thick?
inner core
500
What are the two kinds of rock that the oceanic and continental crusts are made of?
oceanic crust (basalt)
continental crust (granite)
500
What do scientists study to learn about the layers of the earth?
earthquakes