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11 Cards in this Set
- Front
- Back
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Non-renewable fuels that are found in the earth and are believed to have formed from once living things |
Fossil fuels |
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Dark, oily liquid fossil fuel that consists primarily of a mix of hydrocarbons |
Petroleum |
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Unrefined state of petroleum |
Crude oil |
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Process through which crude oil is separated into its components |
Fractional distillation |
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Vapor consisting primarily of methane |
Natural gas |
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Process in which a mixture of water, chemicals, and particles are injected into bedrock to crack strata containing natural gas, allowing these fuels to move more freely |
Hydraulic fracturing |
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Forms of energy that are generated from renewable resources |
Renewable energy |
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Energy obtained from plant and animal products |
Biomass energy |
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Biofuel that is formed by burning wood in a low-oxygen environment |
Wood gas |
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Alcohol derived from corn, grains, or agricultural waste |
Ethanol |
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Biofuel that consists primarily of methane; derived from biomass |
Biogas |
