S2 - Unit 2 Intro - Layers, Boundaries, Earthquakes, & Volcanoes

Front

What is a convergent boundary?

Back

A convergent boundary is the place where two tectonic plates come together, often leading to one plate being forced below another, which can cause earthquakes and volcanic activity.

Front

What causes the movement of Earth’s plates?

Back

The movement of Earth’s plates is primarily caused by convection currents in the mantle, which create heat and movement within the Earth's interior.

Front

What is the geological theory of plate tectonics?

Back

The geological theory of plate tectonics states that pieces of Earth’s lithosphere are in constant, slow motion due to the movement of the underlying mantle.

Front

Which layer of Earth is the thickest?

Back

The mantle is the thickest layer of Earth, lying between the crust and the outer core.

Front

What is a tsunami?

Back

A tsunami is a series of ocean waves caused by large disturbances, such as earthquakes, that displace a significant amount of water.

Front

What is a transform boundary?

Back

A transform boundary is a type of tectonic plate boundary where two plates slide past each other horizontally, often causing earthquakes.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, leading to the formation of new crust, such as at mid-ocean ridges.

Front

What is subduction?

Back

Subduction is the process by which one tectonic plate moves under another plate and sinks into the mantle, often causing volcanic activity.

Front

What are deep-ocean trenches?

Back

Deep-ocean trenches are the deepest parts of the ocean, formed at convergent boundaries where one plate is subducted beneath another.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.