May 2, 2024

20 Halloween Science Experiments!

From nasty slime to sweet coverings, fake blood, wearable LEDs, a fire snake, and things that foam or radiance in the dark, we have ideas for Halloween-themed STEM to explore with students!

By Amy Cowen
on October 1, 2021 6:00 AM

Update! This post has actually been updated for 2021!

With its emphasis on the ghostly, the ghoulish, the gruesome, the spooky, the nasty, and, obviously, the sweet (to consume), Halloween brings a variety of interesting themes to October. Science Buddies has science and engineering jobs, activities, and lessons that connect in with Halloween and can make for excellent classroom, house, or independent science, mathematics, technology, and engineering (STEM) learning opportunities. With a little trick-or-treat-inspired thinking, instructors can plan enjoyable Halloween-themed activities for science class!

Here are some of our favorite Halloween-themed science and engineering experiments and activities to do with trainees at school or kids in the house.

Free K-12 Halloween-themed STEM tasks, activities, and ideas
Try among these 20 activities for hands-on science you can easily “dress up” for Halloween:

Mouthwatering Candy Melt.
The Physics of Fake Blood.

Explore Glow-in-the-Dark Water!
Make a Lemon Volcano (See likewise these other foaming, fizzing, and bubbling ideas.).
Sweet Corn Geodesic Dome.
Make an Alka-Seltzer Powered Lava Lamp.
Building a Halloween Brushbot.
Halloween Robots.
Pumpkin Power.
Science Projects that Double as Halloween Costumes.
Sweet Color Chromatography.
Colored Shadows.

How to Make Slime (Teachers! See also the Slime Shop: Engineer Your Own Slime lesson strategy.).
Electronic Devices and Play Dough.
Sweet Core Samples.
3D Print with Sand: No 3D Printer Required!

Balloon-Powered Car Challenge (A lesson strategy is readily available!).
Make a Fire Snake.
Making Shadow Puppets.
Wearable Light-up STEM.

Bookmark or pin among our Halloween posts or jobs for additional hands-on knowing fun with trainees this Halloween!

Share your story!
Whats your finest Halloween-themed concept for hands-on science and engineering with trainees? We would like to hear how you connect Halloween in with your science class. Email us at [email protected] to share your story!

Whats your finest Halloween-themed concept for hands-on science and engineering with trainees? We would love to hear how you connect Halloween in with your science class.

You Might Also Enjoy These Related Posts:.

For much more fun Halloween science ideas, see: Spooktacular Halloween Science.

Do More.
In addition to our Halloween collections, you and your trainees may enjoy activities and experiments from these “wizardly” science collections:.

With its emphasis on the ghostly, the ghoulish, the gruesome, the spooky, the icky, and, of course, the sweet (to eat), Halloween brings a variety of exciting themes to October. Science Buddies has science and engineering tasks, activities, and lessons that connect in with Halloween and can make for fantastic classroom, house, or independent science, math, technology, and engineering (STEM) knowing chances. With a bit of trick-or-treat-inspired thinking, instructors can plan enjoyable Halloween-themed activities for science class!

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