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in Halloween STEM Activities· Seasonal STEAM· STEM Activities

Science and Spooky Collide in this Skull Slime Recipe

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One of my favorite things to do is bring each season into the classroom in a fun and hands-on way. During Halloween, Halloween STEM activities are a fun way to bring the creepy side of Halloween into the classroom. 

Nothing is slimier and grosser than slime recipes, and we’ve made the science experiment even grosser by adding skull and cross bone erasers to it. Skull slime is the perfect activity for a Halloween party, or a super fun party favor. It’s classroom-friendly nature makes it perfect for science lessons during October.

Kids will think you are the coolest teacher ever if you let them play and learn with this spooky slime.

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

How to Make the Skull Slime Recipe

The skull slime recipe is a slight variation on our classic laundry starch slime recipe.  Make sure to read that post for all the tips you need to make your slime come out perfectly every time.

As a brief overview, however, when we make slime, we use a 1:1:1 ratio with water, starch, and glue.

Using this ratio, the slime comes out perfectly almost every time.

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

What you’ll need to make skull slime:

This post contains affiliate links. I may make a small commission if you purchase through any of the links you click on my site. 

Elmer's Liquid School Glue, Premium Clear, Washable, 1 Gallon, 1 Count - Great For Making SlimeElmer’s Liquid School Glue, Premium Clear, Washable, 1 Gallon, 1 Count – Great For Making SlimeFood Coloring Liqua-Gel - 6 Color Rainbow Kit in .75 fl. oz. (20ml) BottlesFood Coloring Liqua-Gel – 6 Color Rainbow Kit in .75 fl. oz. (20ml) BottlesPurex Sta-Flo Liquid Starch, 64 OuncePurex Sta-Flo Liquid Starch, 64 OunceOriginal Stationery Arts and Crafts Glitter Shake Jars, Extra Fine, 24 Multi color SetOriginal Stationery Arts and Crafts Glitter Shake Jars, Extra Fine, 24 Multi color Set

 

  • Elmer’s clear glue
  • Black food coloring
  • Skull and crossbones erasers (we used these)
  • Liquid laundry starch

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

My preschooler added green play dough to our skull’s eyes to make them more dramatic. She was definitely wanting to up the creep factor.

Mix your food coloring, glue and water in a container.

Add the starch.

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

Mix until it is no longer sticky and pulls easily between your fingers. Depending on the day, this can take just a minute, or up to five minutes.

Once the slime is stretchy and doesn’t stick to your fingers, it’s ready to play with.

Add the bones, and let the learning begin!

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

What Kids Can Learn By Making Slime

Mix science and Halloween when you make skull slime and turn it into a Halloween STEM activity! Kids of all ages will love this creepy science experiment.

Typically, we focus on the science of polymer bonds when we make slime, but this time, I wanted to focus on something a little different. This time when making slime, we focused on intermolecular forces, and how and why different molecules will bond in certain ways. In the case of slime, the borax in the laundry starch mixes with the molecules in the glue, creating covalent bonds. Once bonded, the two ingredients will not come unbonded.

 halloween stem challenges 

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Filed Under: Halloween STEM Activities, Seasonal STEAM, STEM Activities Tagged With: halloween

About Brenda Priddy

Brenda grew up thinking she hated science.

But when her 4-year- old daughter was more interested in reading science facts than fairy tales, Brenda realized she had to learn more about science to keep up with her daughter.

Through simple at-home science experiments, Brenda developed a passion for science and now acts as an advocate for STEM education for kids at her website STEAMsational.com.

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What is STEAM?

STEAM activities for kids promote the idea that science, technology, engineering, art, and math can all work together to help kids become critical thinkers, problem solvers, and innovators!

Join us on our journey to discover just how much fun science experiments can be.

What we do… 

STEAMsational offers STEM and science lesson plans and teaching resources to provide a firm STEM foundation for children in the classroom or home.

All you need to do is find your supplies, gather your scientists, and let the innovation unfold.

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