Today in class we learned about fair tests. I learned that you can't have more then one difference. Like if you want to see what would hit the ground first a brick or a feather and you put the feather one inch off the ground and the brick twelve feet above the ground. In the experiment I did today I saw that if you try to bounce a tennis ball and a dodge ball and see witch one will bounce higher on advridge the dodge ball will bounce 5 centimeters taller. I also learned that a lot of stuff can not be fair like even if you try to get both of the balls bottoms at the same level the slitest bit off could be unfair. Also I learned that you should drop them at the same time because it could make a difference.
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May 2013
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