1.
the idea that continents slowly move over Earth's surface
2.
the original supercontinent
3.
a trace of an ancient organism
4.
the process by which midocean ridges continually add new material to the seafloor
5.
areas along the ocean floor where underwater canyons can be found
6.
the process by which the ocean floor sinks beneath a deep-ocean tench and back into the mantle
7.
where plates come together
8.
where plates spread apart
9.
where plates slide past eachother
10.
the theory that the Earth's crust is broken into plates that shift around
11.
breaks in Earth's crust where rocks have slipped past eachother
