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35 Cards in this Set
- Front
- Back
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What are the 5 properties of a mineral? |
1.Has to be a solid 2.Has to be non-living/never living 3.Can't be man-made 4.Made of the same material 5.Has a crystal structure
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How are rocks and minerals different? |
Minerals are made of only 1 type of mineral, rocks are made of 1 or more types of minerals |
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What are 5 everyday uses of minerals? |
Eating, digesting food, cosmetics, building materials, computers |
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What are gemstones? |
A precious stone |
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Why are pearls not true gemstones? |
They were formed inside a living thing |
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What is an element? |
A pure substance that cannot be broken down into simpler substances |
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How many types of atoms are in an element? |
1 type |
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What is ore? |
Type of rock that contains valuable minerals |
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What are the two types of mining? |
Surface and Subsurface |
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What are the advantages and disadvantages of Subsurface mining? |
Expensive&Unsafe Less Environmental Destruction |
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What are the advantages and disadvantages of Surface mining? |
Cheap&Safe Large Environmental Destruction |
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What are some things in NC that we mine? |
Clay, stone, gemstones, gold, quartz, phosphate |
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What does it mean when a mineral is economically depleted? |
When it costs more to get a mineral out of the ground than what its worth |
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How do we deal with economically depleted items? |
Recycle existing supplies, use less, find a substitute, do without |
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What are 3 harmful side effects of mining on the earth? |
1.Changes and scars land surface 2.Loss of rivers and streams 3.Pollution of air and water
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What is reclamation? |
Returning the land to its natural state after the mining is complete |
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Draw a picture of the rock cycle. Use compaction and cementation, heat and pressure, weathering and erosion |
That's all |
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How are igneous rocks formed? |
Formed when other rocks are melted and cooled |
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Where are igneous rocks formed? |
Underground |
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What is an intrusive igneous rock? |
Rocks formed underground |
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Where does an intrusive igeneous rock form? |
Underground |
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What are some characteristics of intrusive igneous rocks? |
Big crystals, coarse grained |
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What does crystal size have to do with temperature? |
The quicker it cools the smaller the crystal |
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What are extrusive igneous rocks? |
Rocks formed above the ground |
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Where do extrusive igneous rocks form? |
Above ground |
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What are some characteristics of extrusive igneous rocks? |
Small crystals, fine grained |
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What are the characteristics of a felsic rock? |
Less dense, light colored |
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What are the characteristics of a mafic rock? |
More dense, dark colored |
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How are sedimentary rocks formed? |
Formed from layers of broken down pieces of other rocks |
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Where are sedimentary rocks formed? |
Near Earth's surface |
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What are sediments? |
Crushed up rocks, sand, and dirt that form the layers of sedimentary rocks |
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How are sediments related to sedimentary rocks? |
They form sedimentary rock layers |
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What is strata? |
Layers in a sedimentary rock |
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What is stratification? |
Formation of layers in a sedimentary rock |
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What 5 things can stratification tell us? |
1.How the rock was formed 2.What minerals are in the rock 3.The motion of wind and water where the rock was formed 4.Only type of rock to contain fossils(sedimentary) 5.How old the Earth is |
