Layers of earth
The thinnest layer
Crust
Forms mountains and plates collide
Contenintal- contenintal convergent
A theory a seven massive plates.
Plate tectonics theory
When air pressure in volcano rises and shoots magma out of the top of the volcano.
Eruption
A solid ball of iron. Made of nickle and iron.
Inner layer
The outer part of earth containing the upper mantle and crust
Lithosphere
This old ocean crust goes under the new ocean crust
Oceanic-oceanic
African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate
Plate boundary
When two contenintal tectonic plates come together and push up breaking the crust. What is being form?
Mountain forming
A giant rock that holds magam once enough pressure the magma gets released and fly out through the top.
Volcanos
Convection is thought to occur in this layer.
Asthenosphere
This boundary creates a Rift Valley
Contenintal-contenintal divergent
The Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.
Pacific ring of fire
When oceanic crust goes under contenintal crust and forms what?
Formation of volcanos
Convergent,divergent and transform.
The largest layer of earth
Mantel
The ocean goes under the contenintal because it is more dense.
Continental-oceanic convergent
Caused my two tectonic plates sliding past each other
Earth quakes
Divergent plates move out ward causing the see floor to spread and magma up rises creating a mid ocean ridge.
Sea floor spreading
All layers of earth are?
Inner core,outer core,mantle,asthenosphere,lithosphere and crust
The layer that is made of mostly liquid
Outer layer
The the process by which collision of the earth's crustal plates results in one plate'sbeing drawn down or overridden by another
Subduction zones
What scientists use to Measure the lack of movement with the pates
Seismic waves
Caused by the core but this type of current happens in the mental.
Convection currents
What is the biggest layer of earth?
The mantle