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What are Tornadoes? Video Lecture | Class 7 Oxford Science: Chapter Notes, Worksheets & Tests

FAQs on What are Tornadoes? Video Lecture - Class 7 Oxford Science: Chapter Notes, Worksheets & Tests

1. What are tornadoes?

Ans. Tornadoes are powerful and destructive natural phenomena characterized by rapidly rotating columns of air that extend from a cumulonimbus cloud to the ground. They appear as narrow, funnel-shaped clouds, often accompanied by strong winds, intense rainfall, and thunderstorms.

2. How do tornadoes form?

Ans. Tornadoes form when there is a strong updraft of warm, moist air combined with a downdraft of cool air in a thunderstorm. This creates a rotating column of air called a mesocyclone, which can then develop into a tornado if certain atmospheric conditions are met.

3. What is the scale used to measure tornado intensity?

Ans. The scale commonly used to measure tornado intensity is the Enhanced Fujita (EF) scale. It categorizes tornadoes into six different ratings based on the damage they cause, ranging from EF0 (least destructive) to EF5 (most destructive).

4. Where are tornadoes most likely to occur?

Ans. Tornadoes can occur in many parts of the world, but they are most commonly observed in the United States, particularly in an area known as Tornado Alley. This region, which includes states such as Texas, Kansas, and Oklahoma, experiences a higher frequency of tornadoes due to the convergence of warm, moist air from the Gulf of Mexico with dry, cooler air from the Rocky Mountains.

5. How can we stay safe during a tornado?

Ans. To stay safe during a tornado, it is important to have a plan in place and be prepared. Seek shelter in a sturdy building, preferably in a basement or an interior room on the lowest level. Stay away from windows and exterior walls. If you are caught outdoors, find a low-lying area and lie flat, covering your head with your arms. It is also crucial to stay informed by listening to weather alerts and warnings.

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Oct 05, 2025 Last updated

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	Class 7 Oxford Science: Chapter Notes, Worksheets & Tests 138 videos\|151 docs\|18 tests

Class 7 Oxford Science: Chapter Notes, Worksheets & Tests

138 videos|151 docs|18 tests

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