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Unit 1: Intro to Sci
Earth Science 226 - Intro to science overview
| Question | Answer |
|---|---|
| Metamorphic | Rock type made by pressure and heat on existing rocks. |
| Sedimentary | Rock type made by cementation and compaction of rock or organic fragments. |
| Igneous | Rock type made by cooled magma or lava. |
| Intrusive | Igneous rocks cooled beneath the surface. |
| Extrusive | Igneous rocks cooled above the surface; volcanic. |
| Granite | Igneous, intrusive rock. Used for headstones, countertops, stairs. |
| Pumice | Igneous, extrusive rock. Used for exfoliation. |
| Scoria | Igneous, extrusive rock. Used in gas grills. |
| Obsidian | Volcanic glass. Used for Native American arrowheads. |
| Slate | Metamorphic rock. Parent rock = shale. Used for walkways, flooring, and old roofs (heavy!). |