What is the theory of Pangaea?

that all the contients were linked together
The theory is that all of the earth's continents were once one giant land mass, all connected. over time, they broke apart and drifted to the positions they are in today.

The evidence for this is:

1) The "puzzle-piece fit" between Africa and South America

2) Evidence that ice sheets once covered large areas of south america and africa means that they must have once been closer to Antarctica because they are so warm today.

3) The mountain chains on opposite sides of the Atlantic Ocean are similar in age and composition. They were formed when Europe collided with North America.

4) Fossils of the same species found on continents that are today across oceans. Means the continents were once connected.