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Halloween STEM Activities for Kids: Ideas for Fun Kits and More (Free)

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Halloween STEM activities are awesome ways to add an educational touch to your holiday fun with kids.

This free printable pack includes a list of creative ideas plus bag toppers to help you make super cool STEM kits for kids.

Get inspiration for enjoying these DIY Halloween STEM kits and your free set today!

Free printable Halloween STEM activities with list and bag toppers for mini-kits.

Why Halloween STEM Activities are Amazing for Holiday Fun for Kids

Halloween + STEM activities = extra cool learning fun!

If you want to easily boost your Halloween fun with kids, STEM activities are incredible ways to do just that. STEM projects (Science Technology Engineering Mathematics) encourage your kids to get creative and apply skills that they've learned and developed.

When you combine STEM with holiday themes (like Halloween), you're able to better engage your students as they enjoy fun learning activities.

I'm always looking for new ways to take our learning fun to the next level. As my boys are getting older, it's a bit more of a challenge. I'm thrilled that my boys are excited about these mini-Halloween STEM kits! And I can't wait to join them in all this creative fun this Halloween season 🎃

Woman holding Halloween mini-STEM kit with free printable Halloween STEM kits list in background.

Learn More About This Free Printable Pack of Halloween STEM Ideas + Kit Bag Toppers

Before we get to the nitty-gritty of all these Halloween STEM activities, I'd like to fill you in on what you get with this free set of printable Halloween STEM Kits (Ideas and Bag Toppers).

This pack includes 8 pages with:

  • 1 cover page
  • 1 page with list of 12 Halloween STEM kit ideas
  • 6 pages with printable Halloween STEM kit bag toppers (2 bag toppers per page)
Free printables of Halloween STEM activities for mini-kits with example.

How to Make These Halloween STEM Kits for Kids

These Halloween STEM kits are rather simple to make. I recommend printing the bag toppers on white cardstock for durability.

To make the bags, you'll need:

  • a small bag (like clear plastic sandwich bag, small plastic zipper bag, small paper lunch bag)
  • printed bag toppers
  • scissors
  • stapler
  • supplies for each kit (more on the suggested materials in the section below)

How to make these STEM Kits for Kids

  1. Print out bag topper.
  2. Cut out bag topper.
  3. Fold bag topper along dotted line.
  4. Add materials for the STEM kit to the bag.
  5. Close bag.
  6. Place open end of bag topper along top of closed bag.
  7. Staple bag topper into place.

Another idea is to simply close the bag and only use the label portion of the bag topper (cut along dotted line) and adhere to front of bag.

Free printable Halloween STEM kits list and bag toppers with materials.

12 Halloween STEM Kit Ideas

Here are the ideas you'll find on the Halloween STEM Kits List. You'll also find the suggested materials for the Halloween STEM challenges, as well as any additional tips and tricks I can think to share 😊




  • Make ghostly balloon ghosts that fly around using static electricity
  • What are different things to try to make the most static electricity?




  • small cauldron (plastic or metal)
  • baking soda
  • vinegar
  • dish soap
  • food coloring
  • Create a bubbling cauldron experiment with chemical reactions.
  • Try different amounts of the ingredients to see what happens!




  • Create eerie, glow-in-the-dark slime and observe its properties.
  • Experiment with different amounts of materials and test the texture.




  • Construct geometric shapes resembling spider webs.
  • What shape works the best?




  • Create "mystery potions" by mixing colored liquids and labeling them.
  • Which color combinations do you like best?




  • wood craft sticks
  • rubber bands
  • candy corn (or other small Halloween candy)
  • optional: ruler or measuring tape
  • Build catapults to launch candy corn.
  • Which build launches the candy corn the farthest?




  • Assemble and articulate a skeleton model using Q-tips.
  • What type of build makes it easiest to move your skeleton?




  • candy corn (or candy pumpkins)
  • toothpicks
  • marshmallows
  • Build the tallest tower using candy corn and marshmallow connectors.
  • How can you build the tallest tower?




  • Create ghostly glowing balloons by inserting activated glow sticks.
  • What happens when you add more than one glow stick?




  • Design and construct a spooky haunted house using the provided materials
  • What other materials can you use to decorate your haunted house?




  • Design and make a haunted maze.
  • How can you use the materials in different ways?
  • Use the Halloween figurines to work your way through.




  • Assemble and decorate a ghost-shaped glider for indoor flying fun.
  • What style of glider flies the farthest?
Free printables of Halloween STEM activities for mini-kits with woman holding example.

Creative Ideas for Enjoying These DIY STEM Kits

You can use these DIY Halloween STEM kits in so many ways!

I decided to get my boys involved in making these kits. They're getting a big kick out of gathering the supplies.

To add a bit of writing fun, I'm having them jot down the ideas, as well as steps that they'll be using, on an index card. We're also going to boost the STEM fun by using our free printable student project planner pages to map out ideas, tweak, and record final process. Oh, and our states of matter printable activities pack is a great way to boost the science fun!

Ask your students questions to extend the science spooky fun, like:

  • How could you make ghost rockets?
  • What would you need to make a pumpkin volcano?
  • How could you make "ghost slime"?
  • What are some fun pumpkin catapult games that we could play with big, medium, and small pumpkins?
  • What tools or materials can we use for "candy grabbers"?
Project planner printable pack with examples of 3 of 11 pages.

OR you can choose to surprise your kids with these mini Halloween STEM kits!

I think these fun Halloween STEM activities are a perfect way to jumpstart your:

  • Halloween party - creative hands-on activity to be enjoyed during the celebration OR to take home as a Halloween party favor
  • Countdown to Halloween - number the STEM kit bag toppers and enjoy an activity each leading up to the holiday
  • Brain breaks - fantastic way to enjoy a holiday-themed fun activity
  • Community events - add these fun activities to your library or other Halloween community event with kids
  • Trick-or-treat favors - make up a batch of these Halloween STEM kits to hand out to your trick-or-treaters

Also, you may want to add a fun twist to your Halloween STEM projects with different materials, like:

  • gummy worms
  • fake blood
  • different liquids (safe stuff like water, juice, or soda!)
  • play dough
  • school glue
  • gooey slime
Woman holding example of Halloween mini-kits for STEM activities and more with list of ideas and materials in background.

Get Your Free Printable Pack of Halloween STEM Activities

High five! You're on your way to boosting your Halloween fun with kids!

This free printable pack of Halloween STEM activities includes 8 pages.

You can print as many copies of this pack as you need to enjoy with your homeschool, classroom, or co-op. If you have co-workers or friends who may like to use these free printables, please share this postThanks so much for your cooperation and sharing!

To get this FREE printable pack of mini Halloween STEM kits, subscribe to Rock Your Homeschool with your email address.

⭐️ You’ll receive an email with a PDF file plus a password to open the VIP Resource Library to all RYHS freebies. Email Amy at rockyourhomeschool@gmail.com if you have any problems!

Oh, and you’ll also get emails with ideas, resources, and encouragement to make life and learning fun 🙂

(Hey hey! Current RYHS members just need to access the VIP Resource Library page and enter the password in your welcome email.)

Get your Free Printable Pack of mini Halloween STEM Kits (with ideas list and bag toppers) by tapping here or on the image below.

Free printable pages for Halloween STEM activities for kids with creative ideas list and bag toppers.

Which of these Halloween STEM activities will you use first? I'd love to hear about your experiences!

Wishing you tons of Halloween fun with your kids!

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