Plate Tectonics

Front

What does the theory of Continental Drift explain?

Back

Continents were once together and slowly drifted to where they are today.

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener.

Front

How do tectonic plates move along transform boundaries?

Back

They move past one another.

Front

What happens at an Oceanic-Continental Convergent boundary?

Back

Old crust is destroyed and deep earthquakes occur.

Front

How far do tectonic plates move each year?

Back

Centimeters per year.

Front

What are tectonic plates?

Back

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

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is a convergent boundary?

Back

A tectonic plate boundary where plates move towards each other.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where plates move away from each other.

Front

What is a transform boundary?

Back

A tectonic plate boundary where plates slide past one another.