- Leaky Pumpkin
(Ages 5-16)
Get one last use out of all your jack o’ lanterns before you throw them away! This leaky pumpkin foams up all over the place because of a special organism called yeast. You can teach your little chemists how to turn yeast into oozy foam with this simple experiment.
- Spider Launcher
(Ages 5-8)
The product designers at KiwiCo love launchers because they’re a super fun way to play with physics! With this project, your kids can turn a few rubber bands into a stretchy web that launches spiders across the room. While they make their launchers, you can talk to your kids about potential and kinetic energy!
- Creepy Crystals
(Ages 9-16)
In nature, crystals form in caves and caverns, but you can create your own Halloween-themed crystals at home! Mix up a special solution with your kids and watch science unfold before your eyes.
- Count Popula
(Ages 5-16)
Turn your kitchen into a chemistry lab and have your mad scientists create their own bubbling brew that blows up a balloon! As Count Dracula rises from the dead, you can explain the science happening in his head.
- Q-Tip Skeleton
(Ages 3-8)
This is a simple project that can consume hours! You can turn it into an anatomical learning lesson by looking at different kinds of skeletons beforehand. Challenge your child to create a unique skeleton by combining different types of bones!

5 Science Experiments & Pumpkin Projects for Halloween
From bubbly cauldrons to creepy crawlers, science is all around us during the Halloween season. At KiwiCo, we love turning fun crafts into engaging experiments. Try out these activities with your kids and help them see that science happens every day!



