5 Science Experiments and 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!

  • Visual aid of how to complete Puking Pumpkin
    Puking Pumpkin

    (Ages 5-16)

    If you have a ton of rotting pumpkins on your porch, try this to get one last use out of them before you throw them away! 

    Want more spooktacular Halloween fun without the hassle of gathering materials? Explore Halloween science and art projects from the KiwiCo Store!

  • Visual aid of how to complete Spider Launcher
    Spider Launcher

    (Ages 5-8)

    At KiwiCo, we 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 you kids about potential and kinetic energy!

  • Visual aid of how to complete Halloween Crystals

    Ready to try some spooky science, we made some little Halloween crystals to decorate our home! The project takes some time but it was fascinating to grow crystals right in our kitchen! We also made a batch of ornaments to give our loved ones as gifts. Are you ready to grow some spooky homemade crystals?

  • Visual aid of how to complete Count Popula
    Count Popula

    (Ages 5-16)

    It's Halloween - meaning it's time for bubbling brews and spooky science. We had a ton of fun putting chemistry to work to create our own bubbling brew that blew up a balloon. Putting a special Halloween touch made it that much more entertaining. Can you blow up your own balloon Dracula without touching it?

  • Visual aid of how to complete Halloween Q-Tip Skeleton

    Use cotton swabs and glue to create a dramatic skeleton picture to hang on the wall for Halloween. If you have a shadow box frame, you can mount it in that and keep it year after year.

    I love how simple this craft is, yet there is so much to take away from it! Our son was fascinated with the various bone sizes and how they all connected to create our bodies.

Get inspired!