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Unit 2 Vocab
Earth Science Unit 2 Vocabulary
| Term | Definition |
|---|---|
| Igneous Rocks | formed by magma and lava as it cools |
| Metamorphic Rocks | formed from other rocks under extreme heat and pressure |
| Sedimentary Rocks | formed when sediments are compressed and/or cemented together over time and become a rock |
| Intrusive | formed when magma penetrates existing rock, crystallizes and solidifies underground to form intrusions |
| Extrusive | hot magma from inside the earth flows out onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff |
| Compaction | |
| Cementation | process of sedimentary rock formation that occurs when dissolved minerals precipitate out of groundwater and either a new mineral grows between the sediment grains or the same mineral grows between and over the grains |
| Foliated | metamorphic rock, such as schist or gneiss, whose minerals are squeezed under high pressure and arranged in wavy layers and bands |
| Non-foliated | metamorphic rocks like quartzite and marble, composed mainly of minerals that form with blocky crystal shapes |
| Mechanical Weathering | process that breaks down rocks and minerals into smaller pieces but does not involve any change in their composition |
| Chemical Weathering | process by which rocks and minerals undergo changes in their composition due to chemical reactions with agents such as acids, water, oxygen, and carbon dioxide |
| Erosion | removal and transport of weathered materials from one location to another by agents such as water, wind, glaciers, and gravity |
| Landslide | |
| Creep | |
| Slump | |
| Mudflow | |
| Regolith | |
| Bedrock | |
| Glacier | |
| Magma | |
| Rock cycle | |
| Deposition | |
| Soil Profile | |
| Abrasion | |
| Kettle lake |