https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/air 2026-03-27T05:00:18.38177999Z Air: Its composition and Air Pollution Gain insights about the composition of air and the causes of air pollution. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Air: Its composition and Air Pollution Gain insights about the composition of air and the causes of air pollution. https://cdn.kastatic.org/ka-youtube-converted/rJIfJN6jdBo.mp4/rJIfJN6jdBo.mp4 335 Air, Land and Water https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/land-layers-of-soil-and-its-formation 2025-01-27T07:04:21.433023569Z Land : Layers of soil and its formation What is soil made up of? What are the many layers of soil? How is soil formed? What makes soil fertile? Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Land : Layers of soil and its formation What is soil made up of? What are the many layers of soil? How is soil formed? What makes soil fertile? https://cdn.kastatic.org/ka-youtube-converted/kyhBLIMzqW0.mp4/kyhBLIMzqW0.mp4 320 Air, Land and Water https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/structure-of-soil-its-uses 2025-01-08T02:29:38.725066879Z Structure of Soil & Its uses Structure and uses of soil. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Structure of Soil & Its uses Structure and uses of soil. https://cdn.kastatic.org/ka-youtube-converted/NSI6VQwWBgE.mp4/NSI6VQwWBgE.mp4 373 Air, Land and Water https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/e/formation-of-soil 2026-04-08T00:54:09.631945657Z Formation of soil Let's solve some questions vibhor exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/water 2025-01-27T07:04:21.433023569Z Water Water scarcity is a major problem faced by over 2 Billion people across the globe. But why does this happen when 70% of the Earth's surface is made up of water? How can we help save water? Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Water Water scarcity is a major problem faced by over 2 Billion people across the globe. But why does this happen when 70% of the Earth's surface is made up of water? How can we help save water? https://cdn.kastatic.org/ka-youtube-converted/Dozbgnftdao.mp4/Dozbgnftdao.mp4 254 Air, Land and Water https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/e/natural-resources 2026-04-08T00:54:09.631945657Z Natural resources Let's solve some questions! vibhor exercise