Simple Spooky STEM Activities to Scare Up Some Fun

Get into the Halloween spirit with these simple spooky STEM activities!

Halloween is one of our favorite holidays at the Orlando Science Center, so we’ve rounded up some of our favorite simple spooky STEM activities that you can do at home!

We’ve also included instructions on how to give some activities a special Halloween twist. From making the slimiest slime to exploring art with candy, find them all in one place below.

STEM Slime Time!

Our staff concocted the slimiest slime recipe for you to try at home! For glowing slime, use tonic water or highlighter water instead of regular water. Click here to make highlighter water!

Spooky Oobleck

Make an ooey-gooey mess with just two ingredients! Learn about the states of matter and viscosity, practice lab skills like measuring and mixing with this educational messy science experiment that's so fun, you won't even realize you're learning!

To make pumpkin oobleck, color the oobleck orange with paint or food coloring and add pumpkin-scented oil. Alternatively, you can mix a can of pumpkin puree in a pitcher of water and use it in place of the regular water.

Ectoplasm Detector

Have you ever wanted to make something glow under a blacklight? Let us teach you one of our favorite hacks, which you can turn into an Ectoplasm Detector!

Write or draw messages, then hide them in a dark place. Make the Ectoplasm Detector by following the instructions for your DIY Blacklight Hack then use your ectoplasm detector to find and reveal the ghostly messages!

Ghosts in the Graveyard

Have you ever wanted to make something glow under a blacklight? Let us teach you one of our favorite hacks, which you can turn into an Ectoplasm Detector!

Write or draw messages, then hide them in a dark place. Make the Ectoplasm Detector by following the instructions for your DIY Blacklight Hack then use your ectoplasm detector to find and reveal the ghostly messages!

Sweet Science

Trick or Treat! In this experiment, science is sweet! Use a little bit of candy to make Halloween pictures that swirl like magic, to explore chemistry, and to practice making predictions and observations.

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