| A | B |
| Alfred Wegenr | Scientist who suggested theory of continental drift |
| Appalachians | Mountains similar to those in Greenland and Western Europe |
| Basalt | Rock containing iron |
| Continemtal drift | Movment of continents |
| Gomar Challenger | Research ship |
| Harry Hess | Scientist who suggested theroy of seafloor spreading |
| Magnetic | Poles that reverse themselves |
| Glacial deposits | Evidence that Africa was once cold |
| Seafoor spreading | Process that forms new seafloor |
| Nearest to ridge | Location if youngest seafloor rocks |