Awesome Halloween Science Ideas For Kids

Nothing goes together better together than Halloween science and young kids! I can’t tell you how much I love the fun science activities that the Halloween season brings around. We particularly love Halloween science experiments! Join us as we count down with 31 Days of Halloween STEM. You are sure to find tons of ideas here to make your Halloween amazing!

10 Must Try Halloween Science Activities

How to use this resource? Click on the links below to find out how to set up each Halloween science activity for your kids!

If you are looking for more awesome Halloween science ideas, make sure to check out our collection of Halloween slime recipes, Halloween science experiments and Halloween STEM activities.

Also, we have a list of Halloween preschool activities that kids are sure to enjoy!

Halloween Floam

Squishy, moldable Halloween Floam is the perfect sensory treat for kids this Halloween.

Witch’s Brew Fluffy Slime

Fluffy slime has such an amazing texture for little hands to play with. Find out how little Witch’s and wizards can get into the fluffy slime making fun this Halloween!

Halloween Peeps Slime 

I don’t want to alarm you, but you might find eyes in your slime. Yes, I am talking about the eyes of Peeps! We tried something different around here and made a Peeps Candy Halloween slime.

Taste safe slime is great for kiddos who like to sample what they make!

Ghost Bubbles

Build bubbling ghosts with this simple ghost experiment ever scientist will enjoy!

Bubbling Brew Experiment

Mix up fizzy bubbly brew in a cauldron fit for any little wizard or witch this Halloween season. Simple household ingredient create a cool Halloween theme chemical reaction that is just as much fun to play with as it is to learn from!

Halloween Oobleck

Oobleck is a classic activity that is easy to turn into Halloween science with a few creepy crawly spiders and a favorite theme color!

Frozen Hands

Turn an ice melting science activity into a creepy fun Halloween Melting Ice Experiment this month! Super simple and super easy, this frozen hands activity is sure to be a big hit with kiddos of all ages!

Halloween Balloon Experiment

Preschoolers will love watching this fun Halloween science experiment. Blow up a ghostly Halloween balloon with a simple chemical reaction.

Rotting Pumpkin Jack

Pair a fun pumpkin book with a simple rotting pumpkin experiment for all things Halloween science.

Dissolving Candy Corn

This dissolving candy corn experiment is a neat Halloween science experiment that is easy to set up with only a few supplies needed!

More Fun Halloween Activities

Make sure to check out our list of easy Halloween art projects and crafts, as well as Halloween LEGO Challenges and Halloween STEM activities.

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Printable Halloween STEM Activities Pack

150+ Pages of Halloween-Themed Materials!

This Halloween project pack is suitable for home, school, and group use for kids in grades Kindergarten through elementary but is scaleable for many ages and abilities.

What’s Included:

• 25+ Halloween theme science and STEM activities with printable sheets, instructions, and useful information all using easy-to-source materials perfect for limited-time needs. Includes a Halloween engineering pack with fun, problem-based challenges for kids to solve!
• The skeleton activity pack includes building a skeleton challenge and a coding challenge! Try a skeleton bones bridge-building STEM challenge!
• Halloween theme brick printable activities for hands-on learning with math that is perfect for early finishers or home fun and reinforces basic math concepts.
• Bonus fun pack includes games and activities to round out your Halloween theme activities such as I Spy, bingo, matching, Would You Rather cards, scavenger hunt, word search, A-Z Halloween hunt, and a coloring page.
• Halloween STEAM Pack includes artist-inspired projects by Warhol, Lichtenstein, and more!