Mrs. Shively's 4th Grade Class
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Writing
Friendly Letter
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Dancing Raisins
What will happen when you put a few raisins in a cup of 7-up?
California Raisins
Materials:
* 7-Up
* clear drinking glass
* fresh raisins
Procedure:
fill the glass with 7-Up. Drop a couple of raisins into the glass and observe.
vocabulary:
* carbonation: carbon dioxide bubbles in water
* density: a measurement of how solid something is. (a more dense object will weigh more than the less dense object.)
* Buoyancy: the ability or tendency to float in water or air or some other fluid
* rise: to go up; float
* sink: to go down; fall to the bottom
Will the raisins sink float when you place them in the 7-up? Why?
Buoyancy: Brain POP