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D - Science - Ch 9

Fossil Fuels

What is a substance that provides a form of energy, such as heat, as a result of a chemical change? fuel
What can be converted from one form to another? energy
What is the process of burning a fuel? combustion
What is the energy stored in fuels used to generate? electricity
What do they do with water in most power plants? boil it to make steam
What are energy-rich substances formed from the remains of once-living organisms? fossil fuels
What are 3 major fossil fuels? coal, oil and natural gas
What are energy-rich chemical compounds that contain carbon and hydrogen atoms? hydrocarbons
What is a solid fossil fuel formed from plant remains? coal
Coal provides what percentage of the energy used in the US? 23 percent
What is the major use of coal? fuel electric power plants
How can coal mining harm the environment? increases erosion and runoff from mines can cause water pollution
What is another name for the thick, black, liquid fossil fuel? petroleum
What does petroleum fuel? most cars, airplanes, trains & ships
The US consumes how much of all the petroleum produced in the world? a third
What do scientist use to test an area for oil without drilling? sound waves
What is oil called when it is first pumped out of the ground? crude oil
What is a factory where crude oil is separated into fuels and other products by heating called? refinery
What are compounds that are made from oil? petrochemicals
Why does natural gas often rise above an oil deposit? it is less dense
What type of resources are fossil fuels? nonrenewable
How long does it take fossil fuels to form? hundreds of millions of years
Why are new sources of energy needed? to replace decreasing fossil fuel reserves
Created by: lprinke



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