Continental drift was a theory proposed by Alfred Wegener in the early 20th Century that proposed continents were once joined together in a supercontinent called Pangaea before drifting apart. There were three main pieces of evidence for this theory: the continents fit together geometrically, identical fossils are found on separated continents, and similar animal species have been discovered on different continents. The continents moved due to tectonic plates in the earth's surface shifting due to heat in the earth's core.

1. Continental Drift
Continental drift was a theory proposed by Alfred
Wegener in the early 20th Century. Continental drift
started with a continent called Pangaea. There
were three main pieces of evidence.
http://commons.wikimedia.org/wiki/File:Pang
aea_continents.svg
This is what the earth
looked like before the
continents move.

2. • The evidence is that most continents fit
together. For example, South America fits in to
Africa.
http://commons.wikimedia.org/wiki/Maps_of_
the_world

3. • Another piece of evidence is that we have
found the fossils of identical plants and
animals on either sides of the ocean.
http://en.wikibooks.org/wiki/High_School_Ear
th_Science/Continental_Drift

4. http://commons.wikimedia.org/wiki/Maps_of_
the_world#mediaviewer/File:BlankMap-
World-noborders.png
http://commons.
wikimedia.org/wi
ki/File:Golden_jac
kal_small.jpg
Another piece of evidence is that similar
animals have been found on different
continents. For example, different types of
Jackal have been found on different
continents.

5. • The continents mainly moved by the tectonic
plates under the ground’s surface. The plates
are moved by the heat of the earth’s core.
New parts of the plate rises because they are
warm and the plate is thin. A new crust rises
and pushes the rest of the plate out of the
way to form a new crust.
How Did The Continents Move?
http://commons.wikimedia.org/wiki/File:Slice_
earth.svg