| A | B |
|---|
| igneous rocks | rocks formed from the cooling of hot melting lava |
| classification | grouping things together that are alike in some way |
| sedimentary rocks | rocks formed by the cementing of materials together |
| metamorphic rocks | rocks formed when other rocks are put under great heat and presure |
| molten | melted |
| magma | melted rocks and minerals inside the earth |
| lava | magma that comes through the earth's surface |
| texture | the size of crystals in a rock |
| sediment | solid materials that settles to the bottom of a lake or ocean |
| limestone | a sedimentary rock made of calcite |
| particle | a small piece of a solid material |
| sandstone | sedimentary rock made of sand |
| shale | sedimentary rock made of mud and clay |
| conglomerate | sedimentary rock made of pebbles and gravel |
| metamorphic rocks | rocks formed by changes in other rocks |
