Plate Motion: Plate Boundaries

Front

What is a divergent plate boundary?

Back

A divergent plate boundary is where two tectonic plates move away from each other, often creating rifts and mid-ocean ridges.

Front

What geological features are formed at divergent boundaries?

Back

Rifts and ocean ridges are formed at divergent boundaries.

Front

What is a convergent plate boundary?

Back

A convergent plate boundary is where two tectonic plates move toward each other, often leading to subduction or mountain formation.

Front

What happens at a subduction zone?

Back

At a subduction zone, one tectonic plate is forced under another, leading to volcanic activity and the formation of deep ocean trenches.

Front

What is the correct order of Earth's layers from the surface?

Back

The correct order is crust, mantle, outer core, inner core.

Front

What type of boundary are mid-ocean ridges?

Back

Mid-ocean ridges are divergent boundaries.

Front

What rises from the asthenosphere when plates diverge?

Back

Magma rises from the asthenosphere to the surface when plates diverge.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Front

What is the lithosphere?

Back

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

Front

What is plate tectonics?

Back

Plate tectonics is the theory that explains the movement of the Earth's plates and the processes that occur at their boundaries.