April 05, 2007

Balloon hoover craft

Here is another funny experiment for you! It is a great activity at birthday parties, both for kids and adults. And it is a nice ice breaker or a fun way to start a lesson about gases or air. As many as 10-15 kids, depending on weight of course, can stand on the table before the balloons start to explode.

Here is what you do: Inflate lots of balloons to the same size. Turn a table upside down and place it on top of the balloons. One by one, step carefully onto the table, make sure to keep the table in balance. How many can you cram onto the table before the first balloon pops? Let me know!

It is a nice demonstration of the strength of air and it can be compared to the tires of cars, filled with air and withstanding the weight of several tonns.


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