Plate Tectonics

Front

The theory that continents were once connected but have drifted apart

Back

continental drift

Front

Huge piece of crust that slowly moves on the upper, ductile part of the mantle

Back

tectonic plate

Front

The theory that the crust is divided into large pieces called tectonic plates that slowly move on top of the mantle.

Back

plate tectonics

Front

The thin, solid, outermost layer of Earth; is either continental (landmasses) or oceanic (ocean floors)

Back

crust

Front

What is this a picture of?

Back

pangea

Front

What does the theory of continental drift state?

Back

The continents were once joined in a super-continent and have moved over time

Front

The continents move very slowly, only a few __________per year. Options: meters, kilometers, centimeters, miles

Back

centimeters

Front

The east coast of South America seems to fit into the west coast of Africa, this evidence for Continental Drift is called...

Back

fit/shape of continents

Front

Evidence in the theory of Continental Drift for the giant fern named Glossopteris.

Back

fossil

Front

Why was the Continental drift theory originally not well received by other scientists?

Back

The scientists did not know the force responsible for moving the continents.