Earth layers Flashcards
1
Q
what is the inner core made of
A
iron and nickel
2
Q
what is the outer core made of
A
molten state
3
Q
what is seismic waves
A
plate movements
4
Q
how do scientist know how hot the core is
A
seismic waves
5
Q
which 2 elements are mainly found in the inner and outer core
A
Fe and Ni
6
Q
which layer plays the greatest role in the movement of tectonic plates
A
mantle
7
Q
what is convection
A
heat causing rocks to to rise and fall
8
Q
what is the crust
A
the earths outer layer
9
Q
what is the crust made up of
A
granite and basalt
10
Q
what is the mantle made up of
A
magma
