October 01, 2022

STEM Halloween Activities

Halloween STEM tile

Celebrate Halloween with scary STEM fun!

Halloween is a perfect time of year for kids to embrace their inner mad scientists. Check out these ten ideas for ways to fill your home or classroom with skeletal, creepy-crawly, ghastly and ghoulish STEM fun.

Scary Slime

Ages: 4-8

This hands-on activity is perfect for tactile learners, and it can also provide a welcome break from the overwhelm of Halloween candy. Get (manageably) messy and get creative with sparkles, slime, glitter, and googly eyes as you concoct supernatural slime!

Dancing Frankenworms

Ages: 4-8

This simple experiment uses baking soda and vinegar to make gummy worms come alive and dance right in front of your eyes! It’s a particularly big hit with kids who love creepy-crawlies.

Pumpkin Volcano

Ages: 5-11

Have an explosive Halloween with this cool at-home chemistry experiment! We recommend stocking up on a few pumpkins – your kids will want to run this experiment again and again.

Bone Bridge

Ages: 11-14

An engineering challenge with a scary twist? You don’t say! Get your young maker thinking about bridge design this Halloween season.

Creepy Density Tower

Ages: 11-14

Concoct a gooey tiered potion to tangibly demonstrate the properties of density in this creepy liquid layers challenge!

Pumpkin Bath Bombs

Ages: 14-17

Self care? More like self-SCARE. Mix up a Halloween bath bomb with your teenager using turmeric, baking soda, and more.

Ghost Rockets

Ages: 14-17

Use a spin on the old mentos-and-Diet-Coke trick to make flying ghost rockets! You can even run several “trials” of this experiment, varying the ingredients to see how the flight patterns are affected.