earth layer Flashcards
1
Q
what is the largest layer of the Earth
A
the mantle
2
Q
is the outer core liquid or solid
A
the outer core is liquid
3
Q
what is the inner core
A
it is middle of the Earth,
it is also a solid ball made out of
nickel and iron
4
Q
what is the crust
A
it is the first layer of the Earth
5
Q
what is the least dense layer of the Earth?
A
it is the crust
6
Q
what is the outer core mostly made up of?
A
iron and nickel
7
Q
why does the Earth have different layers?
A
because of the density
8
Q
how far have humans been able to drill into the earth
A
about 8 miles
9
Q
what is convection
A
when rocks rise and fall
10
Q
the earth’s core is about the size of …….
A
Pluto
