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i wanted to know how does starting fire with a water bottle really works Answered

i have pick "starting fire with water bottle" for a science fair and i need to know how does it really work? like does it matter what bottle or angle whats the reason for the fire to start

Tags:fire

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Downunder35m
Downunder35m

Best Answer 3 years ago

It can work...
There are som things to consider though:
1. It is best to have a round bottle and by round I mean some part of the bottle should form a round shere - this gives the best focal point.
2. The bottle should be completely filled with water.
3. It works like any magnifying glass - you need enough sun or a big enough magnifying glass to start a fire.

A normal bottle can work too but you won't get a proper focal point, more a blurry line so intense sun is required.

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Yonatan24
Yonatan24

3 years ago

Yes. It will work when there's a lot of sun.

A Magnifying Glass should work better though

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rickharris
rickharris

3 years ago

Works best with a round flask borrowed from the science department!

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kelseymh
kelseymh

3 years ago

Hint: Look through the full bottle. Now look through a pair of glasses or a magnifying glass. How are they similar?

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steveastrouk
steveastrouk

3 years ago

Hint: It has to be sunny to work.