1. I think the powerbalance bands works because…… http://www.youtube.com/watch?v=6gIMxjr3n5U if you watch this video there is proof that it works also they explain the science in it.
2. My hypothesis would be to put the power balance ban on different parts of the body. I would first put one on my friends head and try to make him fall over then I would try it again without the band on.
3. It is necessary because you need all the evidence for a hypotheses or observation or experiment so you can prove your point. Or complete your observations.
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