Hot Air
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Hot air balloons and how they work explanations for a 7 y r old?
Im helping my son answer a question for school but he doesn’t always have the best comprehension and Im trying to explain it in simple terms so he (and I) get it. Here is what we wrote:
What makes a hot air balloon rise?
Warmer air rises in cooler air. A hot air balloon has a bag called the envelope that can hold hot air. Below that is a basket, this carries a source of heat which can produce a increase between the air inside the envelope and the outside air temperature. This helps to keep the balloon and it’s passengers up in the air.
Is that correct? Can you offer a better explanation? Im having trouble understanding the information on websites so please read this through and let me know if it is correct. If it isn’t please suggest changes and rewrite it for me…thanks…remember he is 7, no massive words and technical terms thanks.
Yes , basically correct. The warmer air is less dense than the cold air so it is lighter and rises. for a visual demo you could use a balloon and water, with the water representing the cooler air and the balloon as the hot air balloon. The balloon floats on the water the same way the warmer balloon floats on the cooler air
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Avatar: The Last Puppet Bender – Hot Air