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Pumpkin Volcano!

This experiment isn’t your traditional school science project.

Last week on the blog we made some fall Glitter Slime, but this week we decided we could do something a little foamier!

This time of year, it’s hard to visit any grocery store or local market without noticing a giant display of pumpkins. But instead of letting them remain cute fall decorations, we thought we could do something a little more fun with these festive gourds.

We racked our wacky scientist brains and this is what bubbled over…

This crazy experiment only requires a few household ingredients!

We started by carving our pumpkin! Feel free to select whatever design you would like — but we’re partial to our new WinShape Logo!

Next, fill the bottom with baking soda! We used nearly 2 cups of baking soda to create a big explosion.

*You may need to adjust the amount of baking soda you use depending on the size of your pumpkin.

Then, we poured dish soap, glitter, and food coloring to add some pizzazz to our foamy mess!

Finally — the fun begins!

Pour vinegar on top of baking soda, soap and glitter mixture



Now it’s your turn to get creative and use those pumpkins for something a little more wacky than traditional decorations! We promise you won’t be disappointed!

Make it!


  • Medium-Large Pumpkin
  • Baking Soda
  • Dish Soap
  • Vinegar
  • Food Coloring (optional)
  • Glitter (optional)

Try out this fun experiment and send us pictures of your pumpkin volcanoes — you may even see your pumpkin featured on our WinShape Camps Facebook Page!

Be sure to follow us on Pinterest for more fun activities and fall inspiration for you and your family!


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