Friday, January 27, 2012

Testing a Hypothesis

Yesterday E was playing with this slime we made, and she said that she was doing a test.  I asked her what she was testing, and she said that if she held the slime up and hit it with the knife, she wanted to see if it would go to the left or the right.  "Like on Mythbusters!  They test things."

I said that she was right.  They do experiments.  She said, "No they test things."  So I explained that is what an experiment is- testing a hypothesis.  I gave her some examples.

Then she said "My hypothesis is that if I hold the slime up, it will be easy to cut."  Then she did it and said, "And it's true!"

She did a few other tests to see of the slime would fall one way or the other, and if it was easier to cut with a steak knife or a butter knife. 

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