| A | B |
| Mantle | Thickest layer of earths surface |
| How mountain range formed | Collision between two plates |
| Lithosphere | Layer made mostly of crust and mantle |
| Inner Core | Greatest pressure--made of nickle and iron |
| Asthenosphere | layer on which plates float--mantle |
| Basalt | Oceanic crust made of this |
| Into plates | How is the lithosphere divided |
| Granite | Continental crust made of this |
| Geologists | Person who studies the earth |
| 4 layers of Earth's surface | Crust, Mantle, Outer Core, Inner Core |
| Constructive force | force that builds up Earth's surface |
| Destructive force | Force that destroyes Earth's surface |
| Density | Amount of mass in a given space |
| Mantle | A thick layer of hot rock |
| Rock | Earth's crust is made of this |
| Geology | Study of the Earth |
| Continent | A great land mass surrounded by oceans |
| Seismic wave | A vibration that travels through the earth |
| Heat transfer | Transfer of heat from a hot substance to a cold substance |
| Radiation | Transfer of energy through empty space |