| A | B |
|---|
| Igneous rocks | are formed by volcanic lava that has cooled and hardened. |
| Sedimentary rocks | are formed by many layers of earth. |
| Metamorphic rocks | are formed by heat and pressure. |
| Plate tectonics | is the movement of the plates of the earth. |
| Weathering | the process that breaks down and changes rocks. |
| Erosion | is moving weathered rock and soil to another place. |
| Earth's layers | are the crust, mantle, and core. |
| Earthquakes and volcanoes | cause changes from within the earth. |
| Fossils are | any remains or a trace of an organism |
| The rock cycle | is a never ending process of rocks being changed from one form to another. |
| seismologists | scientists who study faults and earthquakes |
| moraines | piles of rocks and dirt left by depositions |
