https://www.khanacademy.org/science/ap-biology/chemistry-of-life/structure-of-water-and-hydrogen-bonding/v/surface-tension 2023-04-30T21:01:15.828786566Z Surface tension Water molecules are held together by hydrogen bonds, which give water its unique properties. At the surface of water, molecules are more densely packed because they are not being pulled from above, resulting in stronger intermolecular forces. This creates surface tension, which allows for phenomena such as water droplets maintaining a round shape and insects walking on water. video https://cdn.kastatic.org/googleusercontent/DP7DPndX6MRHR76u4zj2nWlYzwXwNXrKgbXN4vgPUyilPKw7af2QFnQgeyMZhMZB1uQok7iYBqD-sypBz3EJnIk Surface tension Water molecules are held together by hydrogen bonds, which give water its unique properties. At the surface of water, molecules are more densely packed because they are not being pulled from above, resulting in stronger intermolecular forces. This creates surface tension, which allows for phenomena such as water droplets maintaining a round shape and insects walking on water. https://cdn.kastatic.org/ka-youtube-converted/_RTF0DAHBBM.mp4/_RTF0DAHBBM.mp4 271 Unique properties of water https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:sates-and-phases-of-matter/x203b0fc81a964b2d:unique-properties-of-water/v/surface-tension-ms 2025-05-07T17:11:10.976262835Z Surface tension Cohesion causes water particles to attract and hold together, leading to fascinating effects like surface tension. At the surface, water molecules pull inward, creating a "skin" that's stronger than the liquid below. This tension allows water striders to walk on water and paperclips to float, highlighting the unique behavior of water’s cohesive forces. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/ebe30a3c-c707-46d3-9c79-bce209d97514_1280_720_base.png Surface tension Cohesion causes water particles to attract and hold together, leading to fascinating effects like surface tension. At the surface, water molecules pull inward, creating a "skin" that's stronger than the liquid below. This tension allows water striders to walk on water and paperclips to float, highlighting the unique behavior of water’s cohesive forces. https://cdn.kastatic.org/ka-youtube-converted/4ELxJ53mMHE.mp4/4ELxJ53mMHE.mp4 313 Unique properties of water https://www.khanacademy.org/science/in-in-class11th-physics/in-in-class11th-physics-fluids/in-in-surface-tension/v/surface-tension-and-adhesion 2023-09-10T17:11:17.624018169Z Surface Tension and Adhesion Unravel the enigma of surface tension and adhesion in liquids, particularly water. Discover how cohesion between water molecules forms surface tension, enabling denser objects, like a needle, to sit on its surface. Investigate practical applications in clinical tests, camping, and hand washing. Explore adhesion, the pull of water molecules to other materials, and its contribution to capillary action. video https://cdn.kastatic.org/googleusercontent/9lyCeX9FfIsE-CssN_KAlVDiDd-7aVbwmzMd1aTJHPqd-ydjcYs6e65r0IVzvFjov5VUcExCiQK1_9dS3-kdwa4D Surface Tension and Adhesion Unravel the enigma of surface tension and adhesion in liquids, particularly water. Discover how cohesion between water molecules forms surface tension, enabling denser objects, like a needle, to sit on its surface. Investigate practical applications in clinical tests, camping, and hand washing. Explore adhesion, the pull of water molecules to other materials, and its contribution to capillary action. https://cdn.kastatic.org/ka-youtube-converted/pmagWO-kQ0M.mp4/pmagWO-kQ0M.mp4 398 Unique properties of water https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:sates-and-phases-of-matter/x203b0fc81a964b2d:unique-properties-of-water/v/cohesion-and-adhesion-2 2025-05-07T17:11:10.976262835Z Cohesion and adhesion Water’s cohesive property explains why droplets form rounded shapes on surfaces. Water molecules attract each other like tiny magnets, which leads to the cohesive forces that hold them together. Adhesion, on the other hand, occurs when molecules cling to other substances, like water and glass forming a meniscus. Together, cohesion and adhesion shape water’s unique behavior on various surfaces. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/9cd1f1f0-af4d-4628-9c8c-f5dd4c2ed513_1280_720_base.png Cohesion and adhesion Water’s cohesive property explains why droplets form rounded shapes on surfaces. Water molecules attract each other like tiny magnets, which leads to the cohesive forces that hold them together. Adhesion, on the other hand, occurs when molecules cling to other substances, like water and glass forming a meniscus. Together, cohesion and adhesion shape water’s unique behavior on various surfaces. https://cdn.kastatic.org/ka-youtube-converted/jppj2KKJpk8.mp4/jppj2KKJpk8.mp4 346 Unique properties of water https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:sates-and-phases-of-matter/x203b0fc81a964b2d:unique-properties-of-water/e/cohesion--adhesion--and-surface-tension 2021-04-29T07:58:20Z Cohesion, adhesion, and surface tension Test your knowledge on cohesion, adhesion, and surface tension of water! Ashley exercise https://www.khanacademy.org/science/ap-biology/chemistry-of-life/structure-of-water-and-hydrogen-bonding/a/specific-heat-heat-of-vaporization-and-freezing-of-water 2025-08-23T06:00:52.132252272Z Specific heat, heat of vaporization, and density of water Learn about specific heat capacity and heat of vaporization of water, evaporative cooling, and why ice floats. article https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:sates-and-phases-of-matter/x203b0fc81a964b2d:unique-properties-of-water/e/understand-properties-of-water 2025-08-07T16:09:50.670994939Z Understand: properties of water Check your understanding of cohesion, adhesion, and surface tension in this set of free, standards-aligned practice questions. donna exercise https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:sates-and-phases-of-matter/x203b0fc81a964b2d:unique-properties-of-water/e/apply-properties-of-water 2026-04-08T00:54:09.631945657Z Apply: properties of water Apply your understanding of cohesion, adhesion, and surface tension in this set of free, standards-aligned practice questions. donna fig exercise