Tectonic plates
wowza
|
The earth has four main layers - the inner core, the outer core, the mantle and crust!
|
Plate movement
Heat from the core cause convection currents in the mantle. These currents slowly move the crust around and in some cases creates new land, or it can destroy crust.
Earthquakes and volcanoes are mostly found at plate boundaries.
Earthquakes and volcanoes are mostly found at plate boundaries.
Plate boundaries
There are many different types of plate boundaries,
Constructive boundaries - when two plates move apart and then magma rises and creates new land.
Destructive boundaries - sometimes called convergent boundaries-the oceanic plate is forced under the lighter continental plate. Friction causes melting of the oceanic plate and may trigger earthquakes.
Conservative boundaries - when two crustal plates move past eachother in opposite directions.
Down below is a fun video showing different types of plate boundaries!
Constructive boundaries - when two plates move apart and then magma rises and creates new land.
Destructive boundaries - sometimes called convergent boundaries-the oceanic plate is forced under the lighter continental plate. Friction causes melting of the oceanic plate and may trigger earthquakes.
Conservative boundaries - when two crustal plates move past eachother in opposite directions.
Down below is a fun video showing different types of plate boundaries!