SaH: Dancing Raisins

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In this experiment, you will discover how bubbles in your beverage can interact with certain solids dropped inside. Before your experiment, write a comment below to share your prediction with us. After your experiment, add another comment to tell us what you learned!



What happens to raisins in a carbonated beverage?



  • Raisins
  • Sprite or another clear carbonated beverage
  • Plastic cup


What to Do

  1. Fill the cup with Sprite.
  2. Carefully add approximately 10 raisins.
  3. Make observations!


What is Happening?

Raisins are more dense than the carbonated liquid. However, the wrinkly surface of the raisin skin is a great place for the carbon dioxide bubbles to sit. As more bubbles gather on the surface of the raisins, they carry the raisins to the top of the liquid. As they get closer to the top, the bubbles pop. The raisins then sink back to the bottom of the container. This process will repeat until the soda runs out of carbonation.

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We here at the Reading Science Center understand that these are unprecedented times. as such, we wanted you to know that we are taking the following precautions until further notice:

  • We have an air scrubber (Vollara) that we use in the Center
  • We have deep cleaning complete weekly 
  • Sanitizing every three hours using MICROBAN Sanitizing spray
  • Hand Snaitizer is readily available throughout the Center
  • Masking is required regardless of vaccination status
  • Limiting Hours (No Tuesdays until February)
  • Temperature Checks and an illness questionnaire
  • We respectfully request that if you or a family member with you is feeling under the weather, you visit us another time.  
  • If we need to close, we will post on Social Media as soon as we have made the decision

Thank You and we look forward to you and your family visiting the Reading Science Center!