Earth's Interior and Plate Tectonics

True of False: Ocean crust NEAR the mid-ocean ridge is very old!

What can be caused when continental crusts hit each other?

Part of mantle that is soft, hot rock. Lithosphere floats on this.

Large supercontinent from 200 million years ago.

Who came up with the theory of continental drift?

Process where one plate sinks beneath another.

When heated rock rises, cools, then sinks, we this is called a _____ current.

True or false: North America and Europe are spreading apart at a slow rate.

Where is Earth's crust thickest?

Which evidence was used to confirm Wegener's theory of continental drift?

Why did most scientists not believe Wegener's theory?

This layer is the crust and upper mantle.

What is Earth's inner core made of?

True or false: Continental Drift is caused by convection currents.

Mid-ocean ridges happen along what type of boundaries?

Which of these is not a boundary type:

Boundary where plates slide past each other.

Convergent boundaries are where plates....

What type of waves do geolists use to study Earth's interior?

The primary cause of continental drift is...