the layer we live upon. it is between 6 km and 70 km thick and contauns solid rock.

Hot molten rock called magma, that moves in convection current like thick honey

the theory that in the past all of the continents were joined together in once giant super continent

Slabs of rock which make up the earth's crust. The oceans and land are on these plates.

molten magma (lava under the crust) moves in circular motions. The plates move on these currents

Plates can slide past each other, pull apart or push together

Destructive plate boundary

When two plates collide the crust crumples upwards making fold mountains and earthquakes

Created when two plates collide and the crust folds or buckles up to form mountains eg. The Alps, The Himalayas

When two plates separate

When two plates pull apart (separate), magma comes to the surface to fill the gap. The magma, now called lava, cools and hardens to create new crust

When two continental plates collide

When two continental plates collide (push together), continental plate folds upwards to create fold mountains. eg. The Alps

When oceanic plate and continental plate collide

The heavier oceanic plate sinks into the mantle and creates an ocean trench (deep hole), sometimes volcanoes spurt up in the continental plate

When plates slide past each other

Plates can get stuck, pressure builds up and when they snap past, an earthquake occurs as the plates shake

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plate tectonics

Term	Definition
crust	the layer we live upon. it is between 6 km and 70 km thick and contauns solid rock.
Outer core	Made of liquid iron and nickel
Inner core	Made of solid iron and nickel
Mantle	Hot molten rock called magma, that moves in convection current like thick honey
Pangea	the theory that in the past all of the continents were joined together in once giant super continent
Plates	Slabs of rock which make up the earth's crust. The oceans and land are on these plates.
Convection currents	molten magma (lava under the crust) moves in circular motions. The plates move on these currents
plate boundary	The edges of the plates
Plate movement	Plates can slide past each other, pull apart or push together
collide	crash together
separate	pull apart
Destructive plate boundary	When two plates collide the crust crumples upwards making fold mountains and earthquakes
Fold mountains	Created when two plates collide and the crust folds or buckles up to form mountains eg. The Alps, The Himalayas
When two plates separate	When two plates pull apart (separate), magma comes to the surface to fill the gap. The magma, now called lava, cools and hardens to create new crust
When two continental plates collide	When two continental plates collide (push together), continental plate folds upwards to create fold mountains. eg. The Alps
When oceanic plate and continental plate collide	The heavier oceanic plate sinks into the mantle and creates an ocean trench (deep hole), sometimes volcanoes spurt up in the continental plate
Constructive plate boundary	new land is formed
Destructive plate boundary	land is destroyed
When plates slide past each other	Plates can get stuck, pressure builds up and when they snap past, an earthquake occurs as the plates shake

Created by: Eduarda

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