Continental Drift Flashcards

1

What might cause continental drift?

2

Magma that is heated near the Earth's core ________.

3

_____ years ago South America and Africa were apart of the same continent.

4

What happens at a mid-ocean ridge?

5

Tectonic plates move at about _____ per year on average.

6

The Earth's crust is divided into tectonic __________.

7

As you move away from a mid-ocean ridge the rocks sampled will be __________.

8

The South American plate is moving _________ the African plate.

9

Hot magma rising away from the Earth's core causes __________ beneath the Earth's crust.

10

Where is the nearest divergent boundary between the South American and African plate?

Continental Drift