| A | B |
|---|
| When did dinosaurs go extinct | Cretaceous Period |
| First mammals appeared | Triassic Period |
| Started 4600 mya | Precambrian Era |
| Plate boundries moving apart | Divergent |
| Plate boundries moving towards each other | Convergent |
| Two contenental plates coliding create ____. | Moountains |
| Rock formed from extreem heat and pressure | Metamorphic |
| Rock created from molten magma | Igneous |
| Contains protons and neutrons | Nucleus |
| Outer most electron shell | Valence |
| Molten rock deep in the earth | magma |
| Occur near plate boundries | Earthquakes and volcanos |
| Evidence of past life | Fossils |
| Modern man appeared | Quaternary |
| Rock from layers of sediment | Sedimentary rock |
| Positive charged atomic particle | Proton |
| Negatively charged atomic particle | Electron |
| Explains how rocks are created and transformed | Rock Cycle |
| Plate boundries where they slide side by side. | Transform fault |
| Has 19 protons | Potassium (K) |
