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Spooky Halloween STEM/STEAM Activities Round-Up

  • Writer: Amy Wung Tsao
    Amy Wung Tsao
  • Aug 20
  • 2 min read

Updated: Aug 25

Halloween doesn’t have to be all about candy. Get into the spooky season mood with some spooky kid science experiments with spiders and skeletons! (And if you're looking for other fall science experiments with clouds, germs, worms, and more - check out this post here!)


Keep reading for easy, hands-on STEM/STEAM activities and experiments that work great in the classroom or for a fun home activity. 


Collage of photos of kids’ science experiments. The collage is titled “Halloween Science Experiments” The photos have labels that read “make a spider web”, “draw a skeleton hand”, and “make a skeleton”.


Spider STEM/STEAM Activities for Halloween


Two young kids: a younger brother preschool age in a green and blue superhero outfit with a book logo on his chest, and an older sister in a Wonder Woman costume. Both kids are standing on opposite sides of a spiderweb made from black yarn tied between two chair backs, with a small spider crafted out of pom poms and paper. 

Explore Spider Web Vibrations from Buggy and Buddy

Make your own spider webs out of yarn or string. (Or try both, and see if that effects how the web vibrates!) This example is a bit elaborate, but you could start with a single strand of yarn between two chairs, and then see if the kiddo is interested in weaving something fancier. 


By plucking the web with a finger, you can make it vibrate like a trapped bug makes real spiderwebs vibrate. Pluck different parts of the web and see how that changes the vibrations. It’s a physics experiment and life sciences activity rolled into one!


(Teachers, spiders changing their environment by building webs naturally supports NGSS K-ESS2-2!)


For even more kid-friendly spider science, check out the books and videos in this post!



Skeleton Science Activities for Halloween


from Art4Kids Hub

My youngest loves the art tutorials from Art4Kids Hub, especially the folding surprises. And look, they have this Halloween art tutorial that’s even anatomically correct! 


I love how the act of drawing makes you understand skeletal structure in a whole new immersive way.  This might be a bit advanced for young preschoolers though. 



from The Winkle

A great science + art project using pipe cleaners and plastic drinking straws! Kids can craft along with the video, learning about the names of bones and their proportions. Younger ones will definitely need some help with this project.  




I hope your spooky season is full of curiously spooky science too! 


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