Plate Tectonics by Cristina Kester

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Slide Notes

Plate Tectonics

Published on Nov 18, 2015

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PRESENTATION OUTLINE

PLATE TECTONICS

BY: CRISTINA

Photo by REDFISH1223

Evidence
Of
Plate
Tectonics.....

SHAPES OF CONTINENTS
Did you ever notice that the continents kinda fit together like a huge Jig-saw puzzle?

Photo by Kevin M. Gill

FOSSILS AND ROCKS
Many similar fossils and rocks have been found on lands that are great distances apart.

Photo by kevinzim

MOUNTAINS
There are very similar mountain ranges on the edges of continents that people think could've been the same mountain range.

Photo by eriktorner

CLIMATE ZONES
Many of the same plant fossils have been found on continents meaning they had to have the same limit zone at one point and be in the same spot!

Photo by NASA Goddard Photo and Video

MIDOCEAN RIDGES
Mid ocean ridges happen when two plates move apart from each other or together.

Photo by Joe Parks

LAYERS OF THE EARTH
The first layer of the earth is the crust the crust is made up of huge rocks called plate techtonics. The second layer of the earth is the mantel. The third layer of the earth is the outer core it is so hot it is liquid! The last layer of the earth is the core it is made up of nickel and iron it doesn't move.

PLATE BOUNDARIES
When two plates move apart it is called a divergent boundary. When two plates move together it is called a convergent boundary, the second stage of convergent boundary is subduction when one plates goes under another. A transform boundary is when plates rub against eachother

WHY PLATES MOVE
Convention current is why they move. Convention current is when the mantel slowly moves because it is so hot. Convention current moves the plates around.

Cristina Kester