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Science- Restless continents

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Rock on the ocean floor provided the final proof of sea-floor spreading with a record of _____________________.
magnetic reversal
Theory that explains how continents reached their current locations.
continental drift
Process that happens when Earth's magnetic poles change place
magnetic reversal
Areas where sea floor spreading occurs are called __________________.
mid-ocean ridges
The process of forming new oceanic lithosphere as magma rises to the surface.
sea-floor spreading
The single landmass split into 2 huge continents called ________________ and _________________________.
Gondwana and Laurasia.
Wegener thought all of the present continents were joined in 1 land mass called ___________________.
Pangaea
List 3 kinds of evidence that support Wegener's theory.
1. fossils of Mesosaurus (a reptile)
2.Glossopteris (an ancient plant)
3.similar types of rock found on several continents
According to Wegener, how many land masses did all the continents once form?
one
What hypothesis by Alfred Wegener explains why continents seem to fit together?
continental drift
The process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies.
sea-floor spreading
The hypothesis that the continents once formed a single land mass,broke up, and drifted to their present locations.
continental drift
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