Tectonic plates consist of
The deep interior of the Earth can be mapped using
The layer of rock that comprises 67% of Earth’s mass
The layer of Earth made mostly of iron
The thin, solid outermost layer above the mantle
The rigid layer made up of crust and upper mantle
The layer made of solid rock that slowly flows
The lower part of the mantle
Wegener thought that all the continents were once together in one large continent called
New oceanic lithosphere forms as a result of
Evidence for sea-floor spreading has come from
Hypothesis that states that the continents were once one large mass that broke apart
Process that takes place at mid-ocean ridges
Part of molten rock at mid-ocean ridges
Process of Earth’s magnetic poles changing places
Items that provide evidence that the continents were once closer together
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