Halloween Science Projects

Halloween is the perfect time for SCIENCE!

Anne Helmenstine

Are you ready for some spooky science? These projects and experiments are just right for Halloween. Make your holiday educational as well as fun!

Mad Scientist Party - Are you throwing a Halloween bash? Why not give it a mad science theme?
Make Spooky Fog - Fog is a great spooky effect. Find it naturally while trick-or-treating or make your own for a party.
Creepy Halloween Jack-o-Lantern - Creepy tendrils of fog flow from the carvings of this jack-o-lantern.
Green Fire Halloween Jack-o-Lantern - This Halloween jack-o-lantern is filled with green fire.
Glowing Hand of Doom Punch - A glowing hand rises from the fog of this bubbling punch. It's the perfect party drink!
Water into Blood Demonstration - Learn about pH indicators or just use this as a cool trick.
Laundry Detergent Glowing Skull - Make a glowing skull decoration using laundry detergent.
Make Fake Blood ... or fake snot, vomit, wounds, or glass.
Glowing Ink can be used to write eerie glowing messages.
Make Colored Fire - Fire is fun, but colored fire can be spooky. Try adding a bit of color to your jack-o-lantern flame.
Make a Fizzy Potion - Halloween drinks can bubble and fizz like something a mad scientist might drink.
Dry Ice Crystal Ball - All you need is dry ice and bubble solution to create an eerie, long-lasting bubble that resembles a cloudy crystal ball.
Halloween Reaction - This clock reaction makes a spectacular Halloween demonstration since the colors change from orange to black. This demo is for the chemistry lab rather than home.

Guide since 2001

Chemistry