My sister needs to make a model hot air balloon.

Its for her science project. Does anyone know a site where I can find plans on how to make one?

I swear I remember my teacher making one out of paper and a tea candle when I was in elementary school. Anyone know?

tea candle and a plastic bag :dabs:

i wanna make one know :lookaroun

take a plastic bag, tie it up to a candle holder, light candle and put in candle holder, hold up bag until it inflates.
Not a hard concept.

Maybe you can find something in
www.howstuffworks.com ???

Quote:

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Originally Posted by rossco

take a plastic bag, tie it up to a candle holder, light candle and put in candle holder, hold up bag until it inflates.
Not a hard concept.

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Tried that, just set the bag on fire..:blushing:

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Originally Posted by GepperRankins

tea candle and a plastic bag :dabs:

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Just tried with a lighter and crisp packet....result; no hot air balloon and one burnt thumb:dabs:

Full a balloon with lighter gas,
cover balloon with paper mache, allow to dry.
paint it with ya favorite hot air balloon colours ~ let dry

cut a small hole at the botton, pop the balloon inside, and ignite the gas

should work ok


edit: due to bad spegling

Here ya go
http://solospirit.wustl.edu/SoloSpir...g/makeone.html
http://pbskids.org/zoom/activities/s...irballoon.html
http://www.inventorscolony.com/balloon/

Quote:

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Originally Posted by CELEBS_ARE_US

Full a balloon with lighter gas,
cover balloon with paper mache, allow to dry.
paint it with ya favorite hot air balloon colours ~ let dry

cut a small hole at the botton, pop the balloon inside, and ignite the gas

should work ok


edit: due to bad spegling

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I'd agree, except for the lighter gas thing (WELL DANGEROUS!!) :frusty:

Papier mache is the way to go.

Just blow up a balloon, cover in papier mache from tissue paper, then pop the balloon, and cut a hole in the bottom.

Use some thin wire to fashion a cradle in which you can support a tea-light at the bottom, under the hole.

Attach the two, light the candle, and hey presto, a hot air balloon. If it's light enough, the heat from the tea-light should be enough for it to fly...? :ermm:

Quote:

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Originally Posted by TheCanuk

My sister

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Is she hot?

Quote:

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Originally Posted by CELEBS_ARE_US

Full a balloon with lighter gas,
cover balloon with paper mache, allow to dry.
paint it with ya favorite hot air balloon colours ~ let dry

cut a small hole at the botton, pop the balloon inside, and ignite the gas

should work ok


edit: due to bad spegling

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FYI, I don't think he's trying to replicate the Hindeburg incident.

It might look really cool, tho'.

Quote:

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Originally Posted by TheCanuk

Quote:

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Originally Posted by rossco

take a plastic bag, tie it up to a candle holder, light candle and put in candle holder, hold up bag until it inflates.
Not a hard concept.

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Tried that, just set the bag on fire..:blushing:

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:lol:

Yesterday I took a bag and opened it and put it over stove (gas) and it inflated a bit but got hot and started to melt so i stopped.:unsure:

I think the heat from the tea light will set the paper on fire, but my sisters trying that anyway.