How does a hot air balloon rise.

Subject: How does a hot air balloon rise.

Date: Tue Mar 3 19:29:47 1998
Posted by Ben Bennett
Grade level: 4-6
School: Morgan Twp. Schools
City: Valparaiso State/Province: IN
Country: USA
Area of science: Physics
ID: 888974987.Ph

Message:


I think it has something to do with hot air is less dense than cool 
air.  But I don't know why.  Thank you.

Re: How does a hot air balloon rise.

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