Scientists believe that millions of years ago all the continents were one big continent called a Pangaea .
Why do they think this? Because They found the same fossils of one species all over the world .
But the tectonic plates that the continents were on shifted moving the continents to where they are today.
The crust of the earth has many plates that move around on the mantle about 1 or two inches every year.
On the boundaries between the plates lots of stuff happen like volcanoes , mountains and trenches . The plates can do many stuff at the boundaries .Like
Divergent bounds
are plates boundaries where plates move apart .
Molten rock comes up and cools making more plate.
Convergent bounds
The plates along the boundaries move toward each other .
Sometimes one plate can move under the other.
Transform bounds
are where two plates move horizontally against each other
Me and my family watched the Croods recently and it had a lot plate movement in it .
Sources: Brainpop
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