Puking Pumpkin
Mix up a creepy concoction that makes barf a blast! Combine hydrogen peroxide, foaming gel, and liquid colors before pouring the mixture into a carved pumpkin from home. Add water and yeast to make your pumpkin “puke” oozy, colorful foam for a spooky twist on science!
Why it’s awesome
Freaky foam
Stir up ingredients to make bubbly barf.
Ghoulish colors
Use liquid colors to create chilling combinations.
What’s included?

Topics explored
Chemical reactions
Mixing colors
Halloween fun
From the desk of the product designer:
Behind the design
“When we were coming up with this crate, pumpkins were out of season. So we got creative with other containers! We used a plastic jack-o'-lantern bucket and some big plastic jars with carved faces to make sure our puke potion was perfect.”
- KiwiCo Product Designer
By the numbers
green!
Favorite foam color
31
Pumpkins that puked during testing
2
Pounds of yeast used
Added