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9th grade Science
Rocks, Minerals, Biogeochemical, Rock Cycle
| Question | Answer |
|---|---|
| What is the Rock Cycle? | Cycle is a series of events that happen over and over. Rocks do not remain the same form forever. Any rock can change into another rock. |
| How to change Igneous rocks? | Igneous-Metamorphic: by Great heat and pressurre Igneous-Sedimentary: Weathering/Erosion Ign.-Ign.: Melting/Cooling |
| How to change Metamorphic Rocks? | Meta.-Ign.: Melting and Cooling Meta.-Sed.:Weathering/Erosion Meta.-Meta.:Heat/pressure |
| How to change sedimentary Rocks? | Sed.-Ign. Melting/cooling Sed.-Meta.:great heat and pressure Sed.-Sed.: weathering/erosion |
| What are Minerals? | Def. natural solids formed from elements & compounds in the earth's crust Properties-Cleavage, Fracture, Hardness, Streak, Luster and Density Inorganic(not living) Ex.-Diamonds & Gypsum Not defined by color: minerals can have the same color, or two |
| What are igneous rocks? | Def. Natural soids that are made up of mineral grains stuck together (magma/lava cooled) Intrusive-magma trapped beneath surface cools coarse Ex. Pegamaite Extrusive- when magma erupts and becomes lava it cools quickly Ex. Basalt Extr |
| What are Sedimentary Rocks? |