Plate Tectonics

Front

What causes the Earth's plates to move?

Back

Convection currents within the mantle cause the Earth's plates to move as molten material rises and falls due to density and gravity.

Front

What is a Plate Boundary where two plates move toward each other called?

Back

Convergent Boundary.

Front

What is the name of the boundary where two plates move apart?

Back

Divergent Boundary.

Front

Which of the following is NOT evidence to support the theory of plate tectonics: Fossils, Mountains, Glaciers, or Sand Erosion?

Back

Sand Erosion.

Front

What was the name of the supercontinent that existed 200 million years ago?

Back

Pangea.

Front

What is the process called when one tectonic plate moves under another?

Back

Subduction.

Front

What type of boundary is formed when two plates slide past each other?

Back

Transform Boundary.

Front

What geological features are commonly found at convergent boundaries?

Back

Mountains, deep ocean trenches, and volcanic arcs.

Front

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

Back

Plate Tectonics.

Front

What is the significance of the Mid-Atlantic Ridge?

Back

It is a divergent boundary where new oceanic crust is formed.