Plate Boundaries

Front

What causes Earth's tectonic plates to move?

Back

Convection currents in the mantle.

Front

What does the asthenosphere make up?

Back

The upper portion of the mantle.

Front

Why does the oceanic plate subduct?

Back

Because it is more dense.

Front

Which type of crust is more dense?

Back

Oceanic crust.

Front

What type of plate boundary is characterized by plates moving apart?

Back

Divergent boundary.

Front

What type of plate boundary is characterized by plates colliding?

Back

Convergent boundary.

Front

What type of plate boundary is characterized by plates sliding past each other?

Back

Transform boundary.

Front

What is the lithosphere?

Back

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

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What is a fault?

Back

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