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Rocks
| Question | Answer |
|---|---|
| Mineral | a natural, solid substance that has a definite chemical composition and physical structure |
| Magma | melted rock within the earth |
| Igneous Rock | forms when magma is pushed up from the mantle into the cool crust and hardens into rock |
| Lava | magma that reached the surface |
| Weathering | the process of breaking rocks into smaller pieces |
| Erosion | the movement of sediment to a new location |
| Deposition | the dropping of sediment from wind or water that slows down, or from ice that melts |
| Sedimentation | the process in which layers of sediment build up |
| Cementation | glues the compacted particles together |
| Clastic Rocks | transported, and deposited in layers made of sediments that were weathered, |
| Chemical Rocks | formed from minerals that were dissolved in water, came out of solution, and were then deposited |
| Metamorphism | the process by which any kind of rock is changed into metamorphic rock |
| Rock Cycle | the processes by which rocks are formed from one another |
| Metamorphic Rock | rocks that have been changed by heat or pressure |
| Three Types of Rocks | igneous, sedimentary, and metamorphic |
| Two Types of Igneous Rocks | Extrusive and Intrusive |
| Two Types of Sedimentary Rocks | Clastic and Chemical |
| Two Types of Metamorphic Rocks | Foliated and Nonfoliated |