| A | B |
|---|
| mineral. | An object that is solid,is formed in nature,and has never been alive. |
| rock. | A solid made of minerals. |
| crust. | The solid outside layer of the Earth. |
| mantle. | The middle layer of the Earth. |
| core. | The center of the Earth. |
| igneous rock. | A rock that was once melted rock but has cooled and hardened |
| sedimentary rock. | A rock formed from material that has settled into layers and been squeezed until it hardens into rock |
| metamorphic rock. | A rock that has been changed by heat and pressure. |
| rock cycle. | The process in which one type of rock changes into another type of rock. |
| fossil. | Something that has lasted from a living thing that died long ago |
