Earth layers Flashcards
1
Q
how far have we been able to drill into the earth
A
1/3
2
Q
what two elements are found in the inner core
A
iron and nickel
3
Q
is the mantel liquid or solid
A
liquid
4
Q
what is the inner core
A
a solid ball of metal made up of nickel and iron
5
Q
what is the outer core
A
the outer core is in a molten state and is found between the inner core and the mantle
6
Q
what is the crust
A
Earth’s outer layer and is made up of the oceanic is the thinnest layer of all the layers
7
Q
what is a convention
A
the cause of the rocks to rise and fall
8
Q
what is a seismic wave
A
Earthquakes and other tectonic plate movements
9
Q
how do we know how hot the inner core is?
A
seismic waves
10
Q
how big is earth’s core
A
about the size of Pluto
