How to Make Gross, Creepy Zombie Slime

“Grrr! I’m a zombie, I’m going to eat your brain!”

You’ll hear this often at our house, as we’re a bit zombie obsessed. Even my preschooler is delighted by the concept of zombies and is ready to transform into a zombie at any moment. Because my kids are so zombie-obsessed, of course we had to add a zombie slime to our collection of slime recipes.

You can make this zombie slime any time of year, but we like to use it as a Halloween STEM activity. Learn about polymer chains while pretending to be a zombie? Who wouldn’t love that?

How to Make Zombie Slime

This zombie slime is so much fun and terrifically gross!

What you’ll need to make zombie slime:

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Elmer’s Liquid School Glue, Premium Clear, Washable, 1 Gallon, 1 Count – Great For Making Slime Food Coloring Liqua-Gel – 6 Color Rainbow Kit in .75 fl. oz. (20ml) Bottles Purex Sta-Flo Liquid Starch, 64 Ounce Original Stationery Arts and Crafts Glitter Shake Jars, Extra Fine, 24 Multi color Set

Go here for the slime recipe!

Our zombie slime follows our liquid laundry starch slime recipe. However, there is a twist. I added a tablespoon more starch to the mix. This makes the slime stringier, which I thought was more zombiesque.

The color we used was leaf green, a few drops of brown, and a few drops of yellow food coloring. We always use this brand of food coloring because it produces bright, vibrant colors (especially important when using white glue).

Once you’ve mixed the glue, food coloring, and water, add the starch. Mix it with your hands right away, and don’t let it rest.

It will be a bit messier than it will be after the rest period, but the stringy, gross texture is just what you want for a zombie slime.

Stretch and play with the slime, but I don’t recommend eating any brains, unless it’s our Jello brain.

Zombie Slime Science

Slime is made up of polymer chains that stretch when bound together. These chains are made when the chemicals in the starch mix with the glue (thanks to boric acid). Adding more starch makes the slime stringier, which adds to the grungy, zombie-like appearance.