Leo had to demonstrate a science experiment today in school. He used his fave book The Encyclopedia of Immaturity (thanks, Rebecca!) to select air cannons. He made a couple different sized cannons and we have been having fun with them for the past few weeks. Then we got a smoke machine and discovered the great smoke rings you can make:
If you can't see this go to
http://youtu.be/1UmMCxHlWHE
It was a huge hit. Best part was that we did not trigger the smoke alarms!
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