Unit Three Review: Plate Tectonics

Front

What are the three types of plate boundaries?

Back

1. Divergent 2. Convergent 3. Transform

Front

What is a divergent boundary?

Back

A plate boundary where two plates move away from each other, often creating new crust as magma rises to the surface.

Front

What is a convergent boundary?

Back

A plate boundary where two plates move towards each other, often resulting in one plate being forced below another (subduction) or mountain formation.

Front

What is a transform boundary?

Back

A plate boundary where two plates slide past each other horizontally, causing earthquakes.

Front

What geological feature is formed at a convergent boundary between two continental plates?

Back

Mountain ranges, such as the Himalayas.

Front

What is the lithosphere?

Back

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

Front

What is the asthenosphere?

Back

The semi-fluid layer of the mantle beneath the lithosphere that allows for the movement of tectonic plates.

Front

What creates Earth's magnetic field?

Back

The movement of molten iron in the outer core, which generates electric currents.

Front

Which layer of the Earth is the hottest?

Back

The Inner Core.

Front

What is subduction?

Back

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