STEAM Fair 2020 Activity
Thanks to Chesapeake Family Life
Carve your pumpkin, add a little baking soda and vinegar to see a great reaction.
What you need:
- Carved pumpkin
- 1/2 cup baking soda
- 2 cups of white vinegar
- Food coloring (for the puke)
How to make a puking pumpkin
- Add baking soda to inside pumpkin
Take the top off your pumpkin. Now add baking soda (about 1/2 cup should be right, but adjust as necessary for best eruption). Be careful it doesn’t poof right out the mouth!
- Mix vinegar and food coloring in container
In a container mix vinegar with some orange food colouring (or whatever colour you want). We used about 2 cups of vinegar.
- Add vinegar mixture to inside pumpkin
Now slowly pour the vinegar into the pumpkin.
How does it work?
Vinegar is Acetic Acid. Baking soda is a base also known as Sodium Bicarbonate. Mixing an acid and a base, creates carbon dioxide, the gas that causes the bubbling during the reaction.
Try changing the food coloring for different vomiting effects.