| A | B |
|---|
| igneous | formed from hardened molten rock |
| metamorphic | formed from pressure and heat |
| sedimentary | cemented bits of rock and fossils |
| soil | composed mostly of weathered rock |
| pollution | how humans harm soil |
| magma | melted rock found underground |
| lava | melted rock found above ground |
| rock | solid material formed from one or more minerals |
| rock cycle | the process of rocks changing from one type to another constantly |
| fault | place where two plates meet |
| plate | large continent sized blocks of crust that move slowly |
| fossil | imprint or remains of organisms from long ago |
| convergent boundary | place where two plates move together |
| divergent boundary | place where two plates move apart |
| sliding boundary | place where two plates slip past each other |
