This is a great discrepant event/lab. Student brain storm what will happen when you put raisins in 7-up. The rasins go up and down it surprises the students. I call this lab "Raisin Questions"...get it? Fantastic way to review density and buoyancy - they love it and it is simple.

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I have taught 5 years at a public school - 8th grade Physical Science and 9th grade Earth Science. I have a MSEd from Binghamton University. I am currently teaching and coordinating programs at the Kopernik Observatory in Vestal, New York. See www.kopernik.org All my labs, tests, and worksheets have been actually used in the classroom.
