| A | B |
|---|
| coal | A black soild mineral used as fuel. |
| extinct | A kind of living thing that is no longer found on the Earth. |
| mineral | Material that form in the Earth from nonliving matter. |
| gneiss | A rock similar to granite. |
| fossil | The hardened parts or mark left by an organism that lived a long time ago. |
| fuel | a material that can be burned to produce heat. |
| ore | A rock that has a large amount of useful minerals. |
| quarry | excavation (digging) for obtained stones. |
| sandstone | A rock made of naturally cemented sand. |
| natural resource | A material that comes from the Earth and can be used by living things. |
