Jack-o-Lantern Pumpkin Volcano Halloween Science Experiments
You’ve got to try this EPIC Jack-o-Lantern pumpkin volcano project! Kids will go nuts when the foam comes pouring out the silly carved pumpkin face in this halloween science activities for preschool! I love teaching science by using seasonal fun like halloween preschool science activities to get kids eager to learn and engaged in science! This pumpkin volcano experiment is a MUST try project with preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too.

halloween science activities for preschool
This Halloween, you’ve got to try this EPIC Jack-o-Lantern pumpkin volcano project! Trust me, kids will absolutely go nuts when they see the colorful foam pouring out of the silly carved pumpkin face. Itâs not just an exciting activity; itâs also a fantastic way to spark an interest in science through fun and seasonal themes. I love using holiday-related projects like this to help young learners get eager and engaged in the world of science.
This pumpkin volcano experiment is perfect for preschoolers, kindergarteners, grade 1, grade 2, and even grade 3 students. It’s an easy and interactive way to combine creativity and education! Imagine the delight on your little ones’ faces as they watch the foam erupting from the pumpkinâa captivating sight that combines art with science and a little bit of Halloween magic.
As you carve your Jack-o-Lantern, not only are you making a festive decoration, but youâre also providing a hands-on science experience! With simple materials and straightforward instructions, this project can easily be set up in classrooms or at home. Just think about the essential science concepts you can introduce, like chemical reactions and the properties of liquids. You can encourage kids to predict what will happen, engage them in the process, and then discuss the results afterward.
The experience of creating, carving, and eventually watching the volcano effect in action fosters teamwork and sparks curiosity. Watching the kids enthusiastically interact with their creation while they learn about science is incredibly rewarding. Itâs a way to make learning memorable and enjoyable!
So, gather your pumpkins and get ready for some explosive fun this Halloween! Try the pumpkin volcano project and witness firsthand how science can be delightful and engaging for young children. Your kids will be talking about this fun learning experience long after Halloween has ended.
We have lots more preschool science experiments and halloween activities to choose from! Don’t miss our cute ghost handprint craft, free halloween worksheets for preschool, easy spider name craft, and puffy paint pumpkins project.

pumpkin volcano
All you need for theis fun halloween activity are a few simple materials you may already have on hand:
- pumpkin (s) – real or artificial, any size!
- Carving knife to cut out top, eyes, nose, and yes.
- 4 Tablespoons warm water
- food coloring
- 2 teaspoon rapid yeast
- 2 squirts of dish soap
- 1 cup hydrogen peroxide 6% or higher solution
- baking dish â to contain the experiment

halloween preschool science activities
You can use real pumpkins and cut open top and scoop out inside, but I prefer to skip the taking out all the guts part and use an artificial pumpkin from a local craft store. Have a responsible adult help use a knife to cut out a silly, spooky, or funny face. You can use any size pumpkin, just remember the bigger the pumpkin the more material you will need to get the huge WOW effect.

pumpkin volcano experiment
The erruption is so cool and dramatic your kids are going to flip! I much prefer the hydrogen perioxide and yeast recipe as it produces an abundant amount of foam. It just flows more smoothly and creates more of a WOW effect.

volcano pumpkin
In a bowl put warm water and yeast, mix. Set bowl in the pumpkin (or dump in if you prefer). Add food coloring and hydrogen periodide and get ready for the yeast volcano fun!

halloween science lesson plans preschool
The bubbles will come up over th etop, thorugh the eyes, out the nose, and silling out through the mouth. It truly is ridiculously cool and gross, and perfect for October! My kids went nuts and we found this years and hydrogen periode recipe creates such nice thick foam that impressed so much more.

pumpkin jack experiment
The impressive chemical reaction between yeast and hydrogen periode is so much fun to watch. This is also known as elephant toothpaste as well. Then you can always start it all over with a new color! My kids wanted to do this again and again.

pumpkin volcano experiment worksheet
This is one really cool October science experiment that EVERYONE has to try at least once!
Pumpkin Activities
- Scented puffy paint pumpkins, paint swatch pumpkin crafts, easy pumpkin toilet paper roll craft, fun yarn and balloon pumpkin craft, hole punch pumpkin craft, and pasta pumpkin craft for preschoolers
- Create a Jack-o-Lantern Scented Rice Pumpkin Activity, 50 fun Pumpkin Activities, rubberband Pumpkin Craft for kids, 100 Pumpkin Crafts for First Grade, 31 October Crafts for Kids, Fun-to-Make Corn Wreath Craft for Kids
- Edible candy corn playdough recipe you MUST try, Amazing Spider SLime, gorgeous leaf art
- Homemade Halloween Silly Putty Activities, How to Make Pumpkin Slime, Taste Safe Pumpkin Clay for Kids, Spookley the Square Pumpkin Shape Activity with homemade Pumpkin Playdough
- Simple Skittles Pumpkin Science Experiment, EASY Pumpkin Volcano, Errupting Halloween Pumpkin Volcano , Exploding Pumpkin Science Experiment for October, Dissolving Candy Halloween Science Experiments, Melting Pumpkins Science Experiment for October, Halloween Lava Lamp Science Experiment, growing pumpkin experiment 2nd grade
- Use your leftover Halloween candy to try some of these candy science experiments, or this water displacement with candy, or this fun candy STEM idea.
- Plus donât miss our favorite pumpkin books for preschoolers these fun FREE Fall Do a Dot Printables, and Preschool Pumpkin Theme
Pumpkin Printables
- MATH – Free pumpkin activity printables that uses Pumpkin Candy to Count and Trace, Pumpkin Seed Counting Activity, hands-on pumpkin pie counting activity, or Pumpkin Pie Number Sense Activities for Preschoolers, , Fall Addition Sticker Worksheets, Pumpkin Shape Games for Preshoolers, free Pumpkin Shape Matching Game, cute Pumpkin Patch Math Game, free pumpkin addition task cards, pumpkin shapes playdough mats, Pumpkin Addition Worksheets for a no prep math, preschool pie craft for practicing counting, Work on One to One Correspondence Kindergarten or this this free pumpkin activity printables, pumpkin Number Bonds to 10 math worksheets, pumpkin math numbers 11-20 worksheets
- LANGUAGE ARTS – find the letter free pumpkin activity printables, cute Pumpkin Phonics activity, free Pumpkin Letter Tracing, printable, Pumpkin Word Family Slides Printables, handy Pumpkin Letter Tracing printable Pumpkin Alphabet puzzles, word family Pumpkin Activities for Kindergarten, fun Pumpkin Sight Word Game, free homophone puzzles
- SCIENCE – Super cute parts of a pumpkin craft plus grab this free Pumpkin Life Cycle Worksheet, Printable, Cut-and-Paste Pumpkin Life Cycle Worksheet
- Free Pumpkin Coloring Book
- Printable Hats make cute Fall Crafts for preschoolers â so many choices





























Thank you for all your amazing preK resources.