Plate Tectonics End Unit Test

Front

What is Pangea?

Back

The name of a supercontinent that existed 280 million years ago.

Front

Which piece of evidence did Wegener use to prove continental drift?

Back

The shape of the continents, similar fossils found on separate continents, and tree fossils found in odd places.

Front

What do we call the process on Earth that breaks down and reforms old rock into new rock?

Back

Rock cycle.

Front

What geologic process formed the Himalayas?

Back

Two continental plates converging.

Front

What is the process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle?

Back

Subduction.

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What is a tectonic plate?

Back

A large slab of Earth's lithosphere that moves and interacts with other plates.

Front

What is the lithosphere?

Back

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

Front

What is a fault?

Back

A fracture in the Earth's crust where blocks of rock have moved past each other.

Front

What is a mid-ocean ridge?

Back

An underwater mountain range formed by plate tectonics.