This video tells you about continental drift. Continental drift is the gradual movement of the continents across the earth's surface through geological time.
Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle. This article will tell you more about plate tectonics. This article decribes the way plates move and how it started, it also talk about pangea. Plate tectonics are a natural part of earth and they shake and collide together.
Continental drift was a theory that explained how continents shift position on Earth's surface. This one is basically like the other one expect it's kinda different. It tells you about a different theory but it's on the same website. It tells you about the continets and how they drifted apart.
This video basically tells you what plate tectonics are and how they work, Bill Nye gives you a basic run on how they work. I got this off of youtube because everyone loves Bill Nye.