Plate Tectonics

Plate Tectonics 

Theory of Plate Tectonics: the crust that breaks apart into section of plates on top of the liquid menthol

Tectonic Plates: A section of the plate or crust.

Convection Currents: the movement of magma that makes plates move.

Summary

Plate Tectonics is the theory that the Earths outer shell is divided into several plates that move over the mantle. the plates act like hard shells. the convection currents cause movement of magma that makes plate move.

Questions

1. What type of boundaries are there?
There are three kinds of plate tectonic boundaries. divergent, convergent, and transform plate boundaries
2. what is oceanic crust and what is continental crust difference?
Oceanic crust is under the water and it is composed of basalt rock, continental crust is on land and is made up of granite rock.

Type of Volcanoes

Types of volcanoes

Shield Volcano: Comes Out very slowly and makes edges on the outside of the mountain.

Cinder Cone Volcano: is cone lava that comes out and makes cinder outside.

Composite Volcano: when lava comes out quick and explode.

Hot Spots: middle point is the really hot spot shoots up.

Summary 

the difference between magma and lava is  magma is melted rock below Earths crust, and lava is melted rock that comes out of a volcano. volcanoes form deep inside Earth, and rocks from the mantle melt and moves up to the surface to shoot lava out through the hotspot.

Questions

1. where is magma located?

Magma is located deep in the continental crust.

2. what volcano shoots exploding lava?

composite volcano.