https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:air/x0c8b40bd4b242f0b:composition-of-air-other-components-of-air-and-its-uses/v/air-has-water-vapor 2023-06-26T04:10:39.513125705Z Air has water vapor What happens when we leave a glass of cold water resting on a table for some time? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Air has water vapor What happens when we leave a glass of cold water resting on a table for some time? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/Kolzbyv31to.mp4/Kolzbyv31to.mp4 62 Air https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:air/x0c8b40bd4b242f0b:composition-of-air-other-components-of-air-and-its-uses/v/explanation-extinguishing-property-of-carbon-dioxide 2023-06-26T04:10:39.513125705Z Explanation: Extinguishing property of carbon dioxide Let's look at the explanation for the activity on extinguishing property of carbon dioxide! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Explanation: Extinguishing property of carbon dioxide Let's look at the explanation for the activity on extinguishing property of carbon dioxide! https://cdn.kastatic.org/ka-youtube-converted/F4fyezmzsuM.mp4/F4fyezmzsuM.mp4 42 Air https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:air/x0c8b40bd4b242f0b:composition-of-air-other-components-of-air-and-its-uses/e/constituents-of-air 2026-03-24T23:41:07.080866137Z Constituents of air Let's solve some problems to better understand the constituents of air. Aakash Bagga exercise https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:greenhouse-effect/v/greenhouse-effect-and-greenhouse-gases 2024-06-28T21:00:15.59562973Z Greenhouse effect and greenhouse gases The greenhouse effect, driven by gases like carbon dioxide, methane, and water vapor, is essential for maintaining Earth's habitable temperatures. However, excessive concentrations of these gases—particularly due to human activities—can lead to global warming and climate change. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/27e417aa-bb45-422d-bb99-7e0e28da1250_1280_720_base.png Greenhouse effect and greenhouse gases The greenhouse effect, driven by gases like carbon dioxide, methane, and water vapor, is essential for maintaining Earth's habitable temperatures. However, excessive concentrations of these gases—particularly due to human activities—can lead to global warming and climate change. https://cdn.kastatic.org/ka-youtube-converted/YpfxiDktSoI.mp4/YpfxiDktSoI.mp4 419 Air https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:air/x0c8b40bd4b242f0b:air-pollution/e/air-pollution-middle-school-india 2026-04-07T23:55:07.30621384Z Air Pollution An exercise dealing with the causes and remedies of air pollution. Joel Prakash Stephen exercise https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:air/x0c8b40bd4b242f0b:air-pollution/v/-inacid-rain 2025-06-15T09:26:42.255525614Z Acid Rain Let's understand Acid Rain! Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Acid Rain Let's understand Acid Rain! https://cdn.kastatic.org/ka-youtube-converted/QgBbcdXC38c.mp4/QgBbcdXC38c.mp4 461 Air