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How to Make Spooky, Oozy Ghost Slime for Halloween

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Boo!

Were you scared?

If that didn’t scare you, perhaps this ghost slime will!

During Halloween, I love to use Halloween STEM activities are a fun way to bring the creepy side of Halloween into the classroom. 

Nothing is slimyer and grosser than slime recipes, but this time, we’re giving our slime a supernatural twist by turning it into ghost slime! Follow along to learn how to make this super simple and easy slime recipe for Halloween!

Ghost experiments to do at home are so much fun! (and you can do them in the classroom, too!)

Make Halloween fun by making ghost slime in your science classroom! This Halloween STEM activity is the perfect Halloween science experiment for kids.

The Easiest Way to Make Halloween-Friendly Ghost Slime

Ghosts may be creepy, but they don’t have to be scary. Adorable ghosts are a staple of any kid-friendly Halloween, and you can make your science class a bit more fun this Halloween by bringing in some ghostly flavor.

Here is how to make your very own ghost slime:

Ghost Slime Science

If you’re wondering why slime is used so often in science demonstrations, it’s because slime is a clear result of chemical reactions and chemical bonds.

When the borax in the laundry starch mixes with the glue, it makes flexible polymer chains. Kids love slime, so by making it, they start seeing how fun science can be!

If you get stuck, check out our slime troubleshooting slime post for more info.

halloween stem challenge cards

Ghost Slime Ingredients

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Ghost Slime Directions

We always use a ratio of one part glue, one part water, and one part laundry starch for our slime. We like this texture and the stretchiness of it.

Occasionally, we’ll put in a bit less water for a slightly thicker slime.

Mix your glue and water together. Don’t add any food coloring.

Add in the starch. Stir.

Make Halloween fun by making ghost slime in your science classroom! This Halloween STEM activity is the perfect Halloween science experiment for kids.

Once the slime has set up (it won’t be cloudy any more and you’ll be able to touch it without it feeling sticky), you’re ready to make your ghost.

Make Halloween fun by making ghost slime in your science classroom! This Halloween STEM activity is the perfect Halloween science experiment for kids.

Cut out ghost eyes and a round ghost mouth from your paper. You can also cut out eyebrows to make your ghost angry. My kids wanted an angry ghost for some reason.

Drape the slime on top of the upside down cup on a table, and let the slime work it’s way down.

Make Halloween fun by making ghost slime in your science classroom! This Halloween STEM activity is the perfect Halloween science experiment for kids.

Add the ghost face to the slime over the cup.

The ghost is done!

halloween stem challenge cards

More Halloween Slime and Science

Eyeball Slime

Skull Slime

Zombie Slime

Paper bag ghosts

Find more amazing Halloween STEAM activities in our October STEM challenges!

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