lesson 2 Restless Contients Flashcards
1
Q
the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present location.
A
Continental Drift
2
Q
One huge continent
A
Pangea
3
Q
Pangaea split into two pieces and these two continents formed
A
Gondwana and Laurasia
4
Q
all sea
A
Panthalassa
5
Q
underwater mountain chains that run through Earth’s ocean basins
A
Mid-ocean ridges
6
Q
new oceanic lithosphere forms as magma rises towards the surface and solidifies
A
Sea-floor spreading
7
Q
when the poles change places
A
magnetic reversal
8
Q
items that provide evidence that the continents were once closer together
A
fossils
9
Q
process of Earth’s magnetic poles changing places
A
magnetic minerals
