Convection Currents and Plate Boundaries

The earths crust is broken up into...

pieces called plates

Why does the crust move?

Because of movements deep inside the earth called convection currents

What creates convection currents

Heat rising and falling inside the mantle

Plate Boundaries

Where two plates meet

Constructive/Divergent Plate Boundary

The two plates push away from each other

Destructive/Convergent Plate Boundary

Two plates move towards each other and one is forced to go under the other plate

Subduction zone

Caused at destructive plate boundaries where the denser plate goes under the other plate.

Collision/Convergent Plate Boundary

Where two plates move towards each other creating fold mountains.

Conservative/Transform Plate Boundary

Two plates sliding past each other in opposite directions or at different speeds.Friction is usually generated being released as an earthquake.