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Minerals and Mining WEEK OF MARCH 28 TH
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Bellringer: March 28 th Photographs Analysis Review: Where were the people mining in the image? What were they mining for? What is that mineral used for?
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Discuss Photo’s
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Minerals and Mining SC.912.L.17.19#: Describe how different natural resources are produced and how their rates of use and renewal limit availability.
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Minerals Mineral: naturally occurring, inorganic, and solid. Each mineral has a unique crystalline structure and chemical composition
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Mining Breaking into the ground in order to gain access to minerals, fossil fuels, water and extracting them. These resources are used in an endless list of goods
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Methods Strip Mining: Layers of surface soil/rock are removed to expose a resource. Machinery removes soil, minerals extracted, soil is replaced. Ex: Mine coal, sand, gravel Subsurface Mining: Deep vertical shafts are dug, networks of horizontal tunnels are built in order to reach mineral. Ex: zinc, lead, tin, gold, copper, salt, diamonds
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Open Pit Mining: Large hole is dug (area is not appropriate for tunnels), mineral and surrounding rock is removed. Expanded until resource runs out. Ex: copper, iron, gold, diamonds Mountaintop Removal: Used primarily for coal mining in the Appalachian Mts. Forests are clear-cut, timber is sold or burned, topsoil is removed, rock is blasted away until mineral is reached
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Solution Mining: Pump chemical solution into the mine, once mineral has reacted with solution, extract the liquid, taking the mineral with it. Commonly used for salt Placer Mining: Sift through material in riverbeds. EX: Gold Rush. Still used in CA & AK Undersea Mining: Dredging – use large machine similar to vacuum to collect sand/gravel from sea floor. Very expensive
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Processing Breakdown: Crush & ground in particles Separation: Froth Flotation: Mixing finely ground ore with water. Minerals are attracted to air bubbles and float to surface Tailings: Waste products Metal Production: Concentrated minerals are processed in a technique called smelting. Heating it beyond melting point and combining it with other metals/chemicals Some metals are a combination of many: EX: Steel
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Bellringer: March 29 th Which form of mining do you think is the least destructive?
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Cookie Mining Lab
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Bellringer: March 30 th Do you think it is possible to mine for a material and not cause damage to the surrounding ecosystem?
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Cookie Mining Lab Data and Conclusion Due
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Bellringer: March 31 st List the 6 major types of mining
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Foldable: Mining Methods 6-Door Foldable Name of method Definition Area in the world utilized Minerals mined through this method Picture/Diagram Color/Neatness
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Bellringer: April 1 st Begin completing foldable
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Finish Foldable & Bookwork
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