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Flashcards in Ch 5 Deck (15):
0

We gents idea that the continents slowly moved over earths surface

Continental drift

1

The supercontinent

Pangea

2

Any trace of an ancient organism that has been preserved in rock

Fossil

3

Mountain ranges that formed along the middle of some oceans

Mid ocean ridges

4

A device that uses sound waves to measure the distance to an object

Sonar

5

The process where mid ocean ridges continually add new material to the ocean Floor

Sea floor spreading

6

Deep underwater canyons

Deep ocean trenches

7

The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle again is called

Subduction

8

The many broken peices of the lithosphere

Plates

9

Plates move apart

Divergent boundary

10

Plates come together

Convergent boundary

11

Plates slip past each other

Transform boundary

12

Earths plates and plate motion into a single theory called

Plate techtonics

13

Break in earths crust where rocks have slipped past each other

Faults

14

A deep valley where peices of earths crust diverge on land

Rift Valley