Plate Tectonics

Front 1

Constructive Boundry

Back 1

As the plates move apart, MAGMA rises through the gap in the Eath's crust and COOLS down to form NEW CRUST. At a constructive or DIVERGENT plate boundary two plates MOVE APART FROM EACH OTHER.

Front 2

Destructive Boundry

Back 2

At a destructive or CONVERGENT plate boundary, tow plates MOVE TOWARDS EACH OTHER. At a destructive plate boundary, the movemet ofthe plates may push the continental crust upward to form FOLD MOUNTAINS. This process is called FOLDING.

Front 3

Conservative Boundry

Back 3

At a conservative or TRANSFORM boundary, the plates MOVE HORIZONTALLY PAST EACH OTHER, without creating or destroying the Earth's crust. An example of a conservative boundary is the SAN ANDREAS FAULT, usa.

Front 4

Composite Volcano

Back 4

Some are composed (made up) of lava and ash; others are made up of lavaonly. COMPOSITE VOLCANOES are made up of alternating layers of lava and ash. Others are made from lava only.

Front 5

Shield Volcano

Back 5

SHIELD VOLCANOES- Tend to be found at consructive plate boundaries. Low with gentle slopes. Formed by basic lava, which is thin and runny. Basic lava spreads quickly to form low, shield-shaped volcanoes. Erupt frequently and gently.

Front 6

Epicentre

Back 6

The point on the earths surface directly above the focus.