How to make ● A VACUUM CHAMBER ● ( for under $30 ! )

How to make ●  A VACUUM CHAMBER ● ( for under $30 ! )
  Chris Notap
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To buy a vacuum chamber cost $400-$500 bucks on Amazon, but I'll show you how to build one yourself for under $30!! You can do fun science experiments to see how things react inside of a vacuum. This can also be used as a foodsaver. You'll have full viewi

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