| A | B |
|---|
| the earths crust is divided into a number of these | tectonic plates. |
| the outer layer of the earth | the crust |
| layer of molten rock on which the plates float | magma |
| a boundary where the plates are moving apart | ocean ridge |
| the deepest part of the ocean | a trench |
| where ocean plate is melted | subduction zone |
| the driving force of the tectonic plates | convection currents |
| created when two continental plates collide | fold mountains |
| created when two continental plates move apart | an ocean |
| name given to volcanoes in the pacific | ring of fire |
| where new crust is being made | constructive plate margin |
| explosive volcanoes often happen here | destructive plate margin |
| mountains created when indian plate collided with asian plate | himalayas |
| fold mountains found along the western coast of south america | andes |
