https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/coal 2025-03-17T04:25:19.828970649Z Coal Ever wondered how a simple black rock changed the world? In this video, we dive into the fascinating journey of coal—from its origins in ancient forests 300 million years ago to becoming one of the most important fuels in history. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Coal Ever wondered how a simple black rock changed the world? In this video, we dive into the fascinating journey of coal—from its origins in ancient forests 300 million years ago to becoming one of the most important fuels in history. https://cdn.kastatic.org/ka-youtube-converted/8oI7t3TqHM4.mp4/8oI7t3TqHM4.mp4 314 Fossil Fuels https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/e/coal 2026-04-10T10:30:33.657604274Z Coal Lets answer some questions! Shankar R exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/petroleum 2025-03-17T04:25:19.828970649Z Petroleum Ever wondered where petrol actually comes from? It’s not just pumped out of the ground—it has a story that began millions of years ago! Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Petroleum Ever wondered where petrol actually comes from? It’s not just pumped out of the ground—it has a story that began millions of years ago! https://cdn.kastatic.org/ka-youtube-converted/HVXlQwtntcs.mp4/HVXlQwtntcs.mp4 373 Fossil Fuels https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/e/petroluem 2026-04-08T01:15:04.085520103Z Petroluem Lets answer some questions! Shankar R exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/natural-gas 2025-03-17T04:25:19.828970649Z Natural Gas Natural gas is one of the most useful fossil fuels, powering our homes, vehicles, and industries. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Natural Gas Natural gas is one of the most useful fossil fuels, powering our homes, vehicles, and industries. https://cdn.kastatic.org/ka-youtube-converted/YMCKMCu3QqQ.mp4/YMCKMCu3QqQ.mp4 290 Fossil Fuels https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/e/natural-gas 2026-04-10T10:30:33.657604274Z Natural Gas Lets answer some question! Shankar R exercise https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-i/v/common-fuel-types-and-uses 2025-08-08T21:39:42.49220884Z Common fuel types and uses Fossil fuels, including petroleum, coal, and natural gas, originate from different organic materials and have varied uses and environmental impacts. Nuclear fuel, another nonrenewable energy source, provides a high energy yield but poses challenges with radioactive waste. With growing needs for energy, integrating renewable sources into our energy source mix is important. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/22835b37-9755-473c-aa4d-dcdee9de9c1e_1280_720_base.png Common fuel types and uses Fossil fuels, including petroleum, coal, and natural gas, originate from different organic materials and have varied uses and environmental impacts. Nuclear fuel, another nonrenewable energy source, provides a high energy yield but poses challenges with radioactive waste. With growing needs for energy, integrating renewable sources into our energy source mix is important. https://cdn.kastatic.org/ka-youtube-converted/_N6BfGeC1dY.mp4/_N6BfGeC1dY.mp4 275 Fossil Fuels