Items needed: clear glass or jar, Club soda, raisins.
Pour about a half of the jar full of Club soda. Drop in a few raisins (4-5). Watch to see the raisins sink to the bottom of the liquid and (hopefully) go back up to the top of the soda. The raisins in this experiment went up and down a few times.
Results may vary.
This is such a fun experiment! I’ve never tried this with club soda before… I have tried baking soda and vinegar (without success). One thing that works really well to get the raisins dancing is Alka Saltzer (sp??) tablets. The raisins will go up and down a bunch of times
Thanks for the suggestion of alka seltzer tablets. We tried the experiment again today and the students loved it. The raisins danced again!