plate tectonics Flashcards
1
Q
lithosphere
A
the outer part of the earth
2
Q
asthenosphere
A
the upper layer of the earths mantle
3
Q
mesosphere
A
a layer of the earths atmosphere
4
Q
inner core
A
great ball of fire
5
Q
outer core
A
outer layer of the core made of iron and nickel
6
Q
seismic waves
A
a wave made by an earthquake
7
Q
oceanic crust
A
part of the lithosphere found under the ocean
8
Q
continental crust
A
part of the lithosphere that makes up the continents
9
Q
density
A
somethings mass per unit of volume
10
Q
alfred wegener
A
a german scientist
11
Q
continental drift
A
a hypothesis about the continents
12
Q
convergent boundary
A
an area where two plates collide
13
Q
divergent boundary
A
a space between plates
14
Q
transform boundary
A
a space where plates slide past each other
15
Q
sea-floor spreading
A
a process where tectonic plates split away from eachother
