From the beginning, though, it was different. It wasn't the same presenter. He was good, but lacked some of the energy of the presenter from last year. None of the information was new. But my mantra, repetition is good, applies here. The more times they see the toilet paper demonstration, the more likely they are to remember the Bernoulli effect and the like. Yes, eventually we will cover it in science (though I don't remember covering it in my science classes...), but they will already have exposure to the concept. That can only help!
Even given that, it was fun and educational! High excitement, high interest, high impact science demonstrations.
How to toilet paper a tree (a.k.a. the Bernoulli effect)
"Anti-gravity"
Dry ice clouds
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