Term
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Definition
| A group of minerals bound together. |
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Term
Where can rocks be found? |
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Definition
In Earth's crust and mantle |
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Term
| What is formed by the cooling and hardening of hot, motlen rock or magma? |
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Definition
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Term
| HOw are sedimentary rocks formed? what is this known as? |
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Definition
| Comoaction and cementing of layers of sediments is how sedimentary rocks are formed. This is known as lithification |
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Term
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Definition
| Matherials such as rock fragments, plant and animal remains and minerals. |
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Term
| How are metamorphic rocks formed? |
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Definition
| the effect of heat and pressure on other rocks. |
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Term
| The rock cycle is the _________by whick rock gradulally and continually changes from one rock type to another. |
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Definition
| repeated series of events |
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Term
| List the steps of the rock cycle |
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Definition
sediments sendimentary rock metamorphic rock lava Igneous rock |
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Term
| what are some of the earth's most important resources? |
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Definition
| air, water, land, and sunlight |
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Term
| what energy resources have become critical to the world economy since the 19th century? |
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Definition
| coal, and oil minerals and metal ores |
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Term
| What is a renewable resource? |
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Definition
| A renewable resource is one that can be relplaced in nature at a rated close to it's use. |
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Term
| List 3 examples of renewable resources. |
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Definition
oxygen in the air, trees in a forest, and food grown in the soil. |
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Term
| How many pounds of mineral resources doesn the average US citizen consume every year? |
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Definition
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Term
| Which type of chemical element has the greatest ecconomic importance? |
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Definition
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Term
| Sometimes native metals can be found alone in nature. Most of the time they have to be _____form other elements or the rock in which it occurs. |
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Definition
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Term
| What is a rock that contains enough of a metallic element to make it profibable called? |
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Definition
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Term
What is the metallic element in an ore rock called? And what is the rest of this type of rock called? |
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Definition
ore meneral the rest is gangue |
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Term
| What are the other meneral resources called that are not metal but very important? |
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Definition
| These resources include sand, gravel, builking stone, rock salt, talc, and graphite. |
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Term
| Known deposits of a mineral in ores that are worth mining are called? |
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Definition
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Term
| Minerals are nonrenewable. The more of a mineral we demand, the more it will be_____________. |
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Definition
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Term
| If present uasage of mineral resources continue at today's present rate, it is estimated that the world reserves of these resources will be used up in ____days. |
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Definition
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Term
| Whay are metals so desirable in our world? |
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Definition
| steel is used for skyscrapers, bridges, tunnels, ships, planes, and trains. Zinc makes brass. |
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Term
| Waht can cosumers do help with the use of meneral resources in order to make them available for a longer period of time? |
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Definition
| Redue the use and demand. This will help redue the cration of hazardous wastes which will help make Earth's enviroment safe. |
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