Ever Changing Earth Vocabulary

Front

What was the supercontinent containing all of Earth's land that existed about 225 million years ago?

Back

Pangea

Front

What is a plate boundary where two plates move away from each other?

Back

Divergent Boundary

Front

What is an undersea mountain chain where new ocean floor is produced?

Back

Mid-ocean Ridge

Front

What is a chain of volcanoes formed above a subducting plate, positioned in an arc shape?

Back

Volcanic Arc

Front

What is the boundary between tectonic plates that are sliding past each other horizontally?

Back

Transform Boundary

Front

What is the process by which continents move apart?

Back

Continental Drift

Front

What is the theory that explains the movement of Earth's plates?

Back

Plate Tectonics

Front

What is the term for the area where one tectonic plate is being forced under another?

Back

Subduction Zone

Front

What geological feature is formed at a convergent boundary?

Back

Mountain Range

Front

What is the term for the molten rock beneath the Earth's surface?

Back

Magma