Plate Tectonics Test Review LG 3.1 & 3.2

Front

What are the remains of organisms noticed by Wegener that are found the same in two continents?

Back

Plants and animals

Front

What discovery caused scientists to rethink Wegener's continental drift theory?

Back

Discovery of seafloor spreading in the Atlantic Ocean

Front

How does evidence of glaciation in Africa support the Theory of Continental Drift?

Back

It shows that the continents must have been in a different location (closer to the poles.)

Front

What was the name of the giant supercontinent that existed 300 million years ago?

Back

Pangaea

Front

What does 'compositional layers' mean?

Back

What the layers are made of

Front

What is the Theory of Plate Tectonics?

Back

The theory that explains the movement of the Earth's lithosphere which is divided into tectonic plates.

Front

What are tectonic plates?

Back

Large pieces of the Earth's lithosphere that move and interact with each other.

Front

What is seafloor spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.

Front

What evidence supports the Theory of Continental Drift?

Back

Fossil distribution, geological similarities, and glacial deposits.

Front

What is the Ring of Fire?

Back

A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.