| A | B |
|---|
| mineral | a solid object found in nature which has never been alive. |
| rock | made of minerals |
| crust | Earth's outside layer |
| mantle | hot, thick middle layer of the Earth. |
| core | center of the Earth. |
| Igneous | soft, hard rock from Earth's mantle that has cooled and hardened. |
| Sedimentary | rock that forms from material that has settled into layers then squeezed together until hard. |
| Metamorphic | igneous or sedimentary rock that has been changed by heat and pressure. |
| rock cycle | details the way one type of rock changes into another type of rock. |
| fossil | something that has lasted from a living thing that died long ago. |
| properties | mineral's hardness, color and shape. |
| Iron | used in buildings, ships, and cars. |
| cast | what is formed when mud of minerals fill a mold. |
