Let’s be honest… Halloween is exciting for kids, but it can also make it really hard to keep them focused. Instead of fighting the sugar rush, lean into it! These Halloween STEM activities (okay, technically STEAM) turn the week of Halloween into a hands-on learning adventure your learners will love.
This set from my Spooky Halloween Thematic Unit is packed with science, technology, engineering, art, and math lessons that make the week before Halloween actually manageable.
Science: Witches’ Potion Experiment
Nothing says Halloween like a bubbling potion! In this lesson, learners mix their own “witches’ potion” (AKA slime) while exploring basic science concepts like mixtures and reactions.
You’ll discuss what happens when each ingredient is added and encourage learners to make predictions: “I think this will make it thicker!” or “I wonder what color it will turn.”
After mixing, they use observation sheets to record what they see, smell, and feel… no tasting in this one!
Technology: Digital Jack-O-Lantern Creations
Head to the computer lab or pull out the iPads for a fun, mess-free tech activity. Learners use a drawing app or program to design digital jack-o-lanterns, complete with shapes, faces, and spooky details.
This one’s perfect for those reluctant artists…it’s all creativity without the cleanup. Some great options are available on ABCya Make a Jack-O’-Lantern, ABCya Pumpkin Carving, or Starfall Holiday Pumpkin.

Engineering: Haunted House Builds
Give your learners a template and some craft materials, then let their creativity take over! They’ll plan, build, and decorate their own haunted houses while practicing fine motor skills and simple design principles.
When finished, display the haunted houses in the hallway or classroom with your Spooky Halloween Bulletin Board Header for instant seasonal décor and a proud student showcase.
Art: Skeletons and Mummies
Pair this project with the read-aloud Skeleton Meets the Mummy by Steve Metzger. Learners love the story’s spooky-fun plot and surprise ending!
After reading, provide art materials like Q-tips, cotton, or masking tape to create their own skeleton and mummy art. It’s the perfect balance of literacy, art, and seasonal fun.
Math: Glittery Spider Web Shapes
End your Halloween week with a sparkly math twist! Learners draw their favorite shape on black construction paper, trace it with glue, and sprinkle glitter to create geometric spider webs.
This activity reviews 2D shapes and gives learners a creative way to show what they know…while you sneak in a little math practice amid the Halloween buzz.
The Perfect Week of Halloween
You don’t have to dread the chaos of late October. These Halloween STEM activities combine learning and excitement in a way that keeps your classroom on track… and your learners engaged from start to finish.
Get the Full Spooky Halloween Unit
The Spooky Halloween Thematic Unit includes:
- Complete STEAM lesson plans for the week
- Literacy centers (alphabet tracing, sight word building, sentence writing)
- Math centers (2D shapes, number bingo, one more/one less, making five)
- Interactive poem, thematic reader, and writing center tools
- Directed drawings and predictable charts for easy daily routines
Everything is done for you… from daily lessons to center prep. Grab the Halloween Thematic Bundle here and make Halloween week simple, structured, and so much fun!
Want More October Fun?
If you love planning your month around engaging themes, check out the October Thematic Bundle. It includes all of the fall favorites… fire safety, pumpkins, nocturnal animals, and of course, Halloween!
Perfect for saving time while keeping your learners excited and your lessons seasonal all month long.
Need a few extra supplies to bring your Halloween STEM week to life? I’ve gathered all my favorite books, tools, and classroom must-haves for these activities in one easy place. You can find them in my Amazon Halloween List.











