Students designed a lab to explore static electricity. Some students changed the surfaces (independent variable) they stuck the balloon to and rubbed/charged each balloon with wool. They measured how long the balloon stuck (dependent variable).
Other students changed the different things they rubbed/charged the balloon with (independent variable) and placed them on the same surface. They also measured how long it stuck (dependent variable).
Other students changed the different things they rubbed/charged the balloon with (independent variable) and placed them on the same surface. They also measured how long it stuck (dependent variable).
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