Age Range

6 years old


Countertop chemistry experiment that can be used for potions class.


1 1000-mL beaker (or 1 glass mixing bowl)

10 g sodium hydrogen carbonate (or 3 Tsp baking soda)

45 mL 3% acetic acid (or 4-5 Tbsp vinegar)

10 2-cm pieces of vermacelli



Fill a clear container 3/4 full with water. Add the sodium hydrogen carbonate (or baking soda) and stir to dissolve.

Break the vermicelli into 2-cm (1-inch) pieces and add them to the container.

Add the acetic acid (vinegar). If the vermicelli does not begin to “dance” after a few minutes, add more sodium hydrogen carbonate and acetic acid.

If possible, substitute raisins or mothballs (or popcorn and rice) for the vermicelli to see what dances best.


Finding Hogwarts

The Leaky Cauldron is not associated with J.K. Rowling, Warner Bros., or any of the individuals or companies associated with producing and publishing Harry Potter books and films.