https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:intro-to-energy-resources-and-consumption/a/global-energy-use 2024-06-21T23:15:14.703721694Z Global energy use Review your understanding of global energy use in this free article aligned to AP standards. article https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-i/a/distribution-of-natural-energy-resources 2024-06-17T18:23:34.095981159Z Distribution of natural energy resources Review your understanding of the distribution of natural energy resources in this free article aligned to AP standards. article https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:intro-to-energy-resources-and-consumption/v/renewable-and-nonrenewable-energy-resources 2025-08-08T21:39:42.49220884Z Renewable and nonrenewable energy resources Energy sources are categorized into renewable and nonrenewable types. Nonrenewable energy sources are those that exist in a fixed amount and involve energy transformation that cannot be easily replaced. Renewable energy sources are those that can be replenished naturally, at or near the rate of consumption, and reused. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/4a933d4d-ab94-44f6-bbad-d41266274892_1280_720_base.png Renewable and nonrenewable energy resources Energy sources are categorized into renewable and nonrenewable types. Nonrenewable energy sources are those that exist in a fixed amount and involve energy transformation that cannot be easily replaced. Renewable energy sources are those that can be replenished naturally, at or near the rate of consumption, and reused. https://cdn.kastatic.org/ka-youtube-converted/G2lQFo69_hc.mp4/G2lQFo69_hc.mp4 181 Renewable and non-renewable energy sources of energy https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:intro-to-energy-resources-and-consumption/a/renewable-and-nonrenewable-energy-sources 2024-06-21T23:15:14.703721694Z Renewable and nonrenewable energy sources Review your understanding of renewable and nonrenewable energy sources in this free article aligned to AP standards. article https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:natural-resources/a/natural-resources 2026-04-30T07:30:36.209464894Z Key points: Natural resources Review your understanding of natural resources in this free article aligned to NGSS standards. article https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-i/a/fossil-and-nuclear-fuel-extraction 2024-06-17T18:23:34.095981159Z Fossil and nuclear fuel extraction Review your understanding of fossil and nuclear fuel extraction in this free article aligned to AP standards. article https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:energy/x19bc096754f0b9af:non-renewable-and-renewable-energy-resources/v/neverendingsupply 2020-06-23T07:22:42Z Never-ending supply Renewable energy sources might just be the answer to a sustainable future. What makes an energy source renewable, and how can we use these sources to power our societies well into the future?   NOVA video https://cdn.kastatic.org/googleusercontent/JP0G3kt2QGYlWwKFsaaKMhJy9kXSAESiXhf82XxWN9vi_ne35mnMDhwK393kwlBUoeHed9lUDjgdv8hjrBRqDvuf Never-ending supply Renewable energy sources might just be the answer to a sustainable future. What makes an energy source renewable, and how can we use these sources to power our societies well into the future?   https://cdn.kastatic.org/ka-youtube-converted/_osI4x5XOzA.mp4/_osI4x5XOzA.mp4 165 Renewable and non-renewable energy sources of energy https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:energy/x19bc096754f0b9af:non-renewable-and-renewable-energy-resources/e/never-ending-supply-quiz 2021-06-05T01:51:05Z Never-ending supply quiz Try this quiz about renewable energy sources. NOVA exercise https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-ii/v/solar-energy 2022-11-08T01:12:28.564445794Z Solar energy Passive solar energy systems absorb heat directly from the sun without the use of mechanical and electric equipment, and energy cannot be collected or stored. Active solar energy systems use solar energy to heat a liquid through mechanical and electric equipment to collect and store the energy captured from the sun. Photovoltaic solar cells capture light energy from the sun and transform it directly into electrical energy. Their use is limited by the availability of sunlight. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/6ed88dc3-2bc9-4ad3-94ea-75036232983a_1280_720_base.png Solar energy Passive solar energy systems absorb heat directly from the sun without the use of mechanical and electric equipment, and energy cannot be collected or stored. Active solar energy systems use solar energy to heat a liquid through mechanical and electric equipment to collect and store the energy captured from the sun. Photovoltaic solar cells capture light energy from the sun and transform it directly into electrical energy. Their use is limited by the availability of sunlight. https://cdn.kastatic.org/ka-youtube-converted/OVODBZUJAYE.mp4/OVODBZUJAYE.mp4 408 Renewable and non-renewable energy sources of energy https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:energy/x19bc096754f0b9af:non-renewable-and-renewable-energy-resources/v/windpower 2020-06-23T07:22:40Z Wind power Unlike the water-pumping windmills that inspired them, modern wind turbines generate electricity. But several engineering puzzles must still be solved to make wind power available in all communities.   NOVA video https://cdn.kastatic.org/googleusercontent/agMvP1XRZWVQbHFJOZqkoMyWKfsDUQrL94ZWKCMxLotZKfzTunEKrHcN5Tt_ZSr0ZYnWHIXheXOeo7B8Rhtkllo Wind power Unlike the water-pumping windmills that inspired them, modern wind turbines generate electricity. But several engineering puzzles must still be solved to make wind power available in all communities.   https://cdn.kastatic.org/ka-youtube-converted/SQpbTTGe_gk.mp4/SQpbTTGe_gk.mp4 154 Renewable and non-renewable energy sources of energy https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-ii/a/geothermal-energy 2024-06-21T23:15:14.703721694Z Geothermal energy Geothermal energy uses heat from the Earth to heat or cool air, or to produce electricity. article https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-ii/a/hydroelectric-power 2024-06-21T23:15:14.703721694Z Hydroelectric power Outlines the advantages and disadvantages associated with three forms of hydropower. article