Continental drift

Continental drift is the theory that the continents are moving with the tectonic plates.
Evidence
1.)The East coast of South America matches the West coast of Africa
2.)Fossils of tropical plants are found in Antarctica
3.)Mountains in North America match mountains in Europe
4.)Glacial striations
are found in jungles. Very Good!
Seafloor spreading is the theory that new seafloor is constantly be being made by lava coming to the surface at mid ocean ridges. The Earth doesn't grow because the seafloor is sub ducting down under the continents to be recycled back into magma.
Evidence
1.)Scientist aged the rock and found that the seafloor furthest from the mid ocean ridge is older.
2.)The magnetic particles in the rock are pointing different directions showing that the seafloor has been going in different directions during magnetic pole switches.