| A | B |
|---|
| metamorphic rock | rock formed by changing an existing rock through heat and/or pressure |
| sedimentary rock | rock formed in layers from deposits of small particles |
| sediment | soil, rocks, and minerals deposited by water, wind, or ice |
| mineral | a naturally occuring compound or element |
| luster | the apperence of the surface of a mineral because of the way it reflects light |
| igneous rock | rock formed by cooling and hardening of hot, molten magma or lava |
| geologist | a scientist who studies earth's structure, forms, rocks, and minerals |
| weathering | the phyical or chemical breakdown of earth's material into smaller and smaller pieces |
| rock cycle | the step by step formation desturtion and reformation of rocks |
| magma | the red, hot melted rock |
| erosion | the carrying away of weathering by gravity, water, and wind |
| cycle | event which repeats again and again |
