| A | B |
|---|
| geologist | A scientist who studies the forces that make and shape the earth |
| rock | The materialthat forms Earth's hard surface |
| Constructive Force | That which shapes the surface by building up mountains and landmasses |
| geology | The study of planet Earth |
| Destructive forces | Those forces that slowly wear away mountains and, eventually, every other feature on the surface. |
| Continents | Seven great landmasses surrounded by oceans |
| seismic waves | A vibration that travels through Earth carrying the enerrgy released during an earthquake |
| Pressure | is the force pushing on a surface or area |
| crust | a layer of rock that forms Earth's outer skin. |
| Basalt | is dark, dense rock with a fine texture |
