| A | B |
| dike | this runs up in down and is an igneous rock formation |
| sill | this runs parallel to the surface and is an igneous rock formation |
| batholith | the largest igneous rock formation |
| laccolith | mushroom shaped igneous rock formation |
| extrusive | froms outside Earth's surface |
| intrusive | froms inside earth's surface |
| coarse | grain of rock with large crystals |
| fine | grain of rock with small or no crystals |
| pumice | type of extrusive igneous rock that has air trapped inside |
| basalt | igneous rock comprising the ocean floor |
| igneous | means "fire" rock |