https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:natural-hazards/v/natural-hazards 2022-09-24T02:40:50.371452513Z Natural hazards A natural hazard is any natural event that poses a risk to humans or the environment. Some natural hazards, such as severe weather events, can be predicted using data and technology. Other hazards, such as earthquakes, are not yet predictable. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/31b5df5f-9e91-4105-a765-ebe125262337_1280_720_base.png Natural hazards A natural hazard is any natural event that poses a risk to humans or the environment. Some natural hazards, such as severe weather events, can be predicted using data and technology. Other hazards, such as earthquakes, are not yet predictable. https://cdn.kastatic.org/ka-youtube-converted/rVVoccltP8A.mp4/rVVoccltP8A.mp4 248 Natural hazards, disasters, prevention and mitigation, preparedness, and adaptation https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:winds-storms-and-cyclones/x2afa7396c019dcda:storms/v/tropical-cyclones 2025-07-16T22:11:44.585720097Z Tropical cyclones Tropical cyclones are powerful, rotating storms that form over warm ocean water. They build strength through rising moist air and heat released during condensation. The Coriolis effect causes them to spin—counterclockwise in the Northern Hemisphere, clockwise in the Southern. These storms weaken over land or cool water but can still cause severe wind and flooding. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/d37e06e5-db13-4889-b769-94d53d105779_1280_720_base.png Tropical cyclones Tropical cyclones are powerful, rotating storms that form over warm ocean water. They build strength through rising moist air and heat released during condensation. The Coriolis effect causes them to spin—counterclockwise in the Northern Hemisphere, clockwise in the Southern. These storms weaken over land or cool water but can still cause severe wind and flooding. https://cdn.kastatic.org/ka-youtube-converted/kRp-VcCaUS0.mp4/kRp-VcCaUS0.mp4 341 Natural hazards, disasters, prevention and mitigation, preparedness, and adaptation https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:winds-storms-and-cyclones/x2afa7396c019dcda:untitled-197/v/severestorms 2025-07-01T18:08:15.179962416Z Severe storms We might prefer beautiful weather reports, but we really pay attention when severe storms are predicted. So how do Earth's most powerful storms develop, and how is this related to cloud formation? NOVA video https://cdn.kastatic.org/googleusercontent/XmyIMmxX3-ws3FZf79K8o-ChUtwO8RRUIVfp4oL-uR4KfM3sX0kuJpVgV7QGWsZZkDVUgiO5f3WzGpB_E1ShrPcs Severe storms We might prefer beautiful weather reports, but we really pay attention when severe storms are predicted. So how do Earth's most powerful storms develop, and how is this related to cloud formation? https://cdn.kastatic.org/ka-youtube-converted/xJ-bPlF6PNc.mp4/xJ-bPlF6PNc.mp4 218 Natural hazards, disasters, prevention and mitigation, preparedness, and adaptation https://www.khanacademy.org/science/strengthened-shs-general-science/x62975eaa369df585:4th-quarter-earth-and-space-science/x62975eaa369df585:natural-hazards-disasters-prevention-and-mitigation-preparedness-and-adaptation/a/activity-natural-disasters 2023-02-23T03:02:14.778510718Z ACTIVITY: Natural Disasters article https://www.khanacademy.org/science/grade-8-science-tx/x3cd7525f789ab4f1:weather-systems/x3cd7525f789ab4f1:tropical-cyclones/a/tropical-cyclones 2025-07-09T20:36:41.476769486Z Tropical cyclones Learn about tropical cyclones and the Coriolis effect. article https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:natural-hazards/e/apply-natural-hazards 2026-02-27T18:00:31.886851552Z Apply: natural hazards Apply your understanding of natural hazards in this set of free practice questions aligned to NGSS standards. Lauren Rosebrugh exercise https://www.khanacademy.org/science/als-k-to-12-science/x46c2fc9f8e023990:3rd-quarter/x46c2fc9f8e023990:exploring-the-different-types-of-climate-in-the-philippines/e/severe-storms-quiz 2021-06-05T02:05:56Z Severe storms quiz Try this quiz about severe storms. NOVA exercise https://www.khanacademy.org/science/grade-8-science-tx/x3cd7525f789ab4f1:weather-systems/x3cd7525f789ab4f1:tropical-cyclones/e/understand-tropical-cyclones 2026-04-07T23:17:37.123726494Z Understand: tropical cyclones Check your understanding of tropical cyclones in this set of free, standards-aligned practice questions. Wieteke Holthuijzen exercise