You know it's a successful science lesson when you hear any of the above comments. On Friday, we mixed baking soda and vinegar to make foam come out of a pumpkin's mouth.
- First, we carved the pumpkin. We took turns removing the "gunk and seeds" from inside the pumpkin. Then, we voted on the shape of the eyes, nose, and mouth:
- Second, we took turns adding baking soda to a cup:
- Next, we placed the cup inside the pumpkin and poured the vinegar:
- Finally, we watched it foam!!!! My favorite quote was, "The pumpkin is puking!!!!"
I was hoping for more foaming action, but the kids still had fun! I hear that if you add dish soap to the mixture it will bubble more. Has anyone tried it?