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UNSOLVED MYSTERIES: Oklahoma's Tornado Alley (720p)
Content Provider | WatchKnowLearn |
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Description | This educational video shows Oklahoma's largest tornadoes in recent history. A tornado is a violently rotating column of air that rotates while in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters or cyclones,[1] although the word cyclone is used in meteorology to name any closed low pressure circulation. Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust. Most tornadoes have wind speeds less than 110 miles per hour (180 km/h), are about 250 feet (80 m) across, and travel a few miles (several kilometers) before dissipating. The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (480 km/h), are more than two miles (3 km) in diameter, and stay on the ground for dozens of miles (more than 100 km). |
Language | English |
Access Restriction | Open |
Subject Keyword | k-12 homeschool homeschooling home school parents educational videos k12 preK-12 Natural Disasters Safety Life Skills |
Content Type | Video |
Educational Role | Student Teacher |
Educational Use | Self Learning Lecture |
Time Required | PT49M48S |
Education Level | Class VIII Class XI Class IX Class XII Class VII Class X |
Pedagogy | Lecture cum Demonstration |
Resource Type | Video Lecture |
Subject | Natural Disaster |