Make creepy-cool eyeball slime with clear glue, bright Halloween colors, glitter, and plastic eyeballs! This easy slime recipe is stretchy, colorful, and perfect for adding a spooky twist to your Halloween science activities.
Choose green, purple, orange, or red slime, then toss in plastic eyeballs for an easy Halloween slime kids will love.
How to Make Eyeball Slime
Field: Chemistry
Grades: K–5
Concepts: Polymers, mixtures, viscosity, chemical reactions
This eyeball slime starts with our easy saline solution slime recipe. Clear glue is especially fun for this version because you can see the eyeballs, glitter, and other spooky mix-ins throughout the slime.
Supplies
- 1/2 cup clear washable PVA school glue
- 1/2 cup water
- 1/2 teaspoon baking soda
- 1 tablespoon saline solution
- Food coloring
- Glitter, optional
- Plastic eyeballs
- Bowl
- Spoon
💡 Important: The saline solution should contain sodium borate and/or boric acid for the slime recipe to work.
Eyeball Slime Instructions
STEP 1: Add 1/2 cup of clear glue and 1/2 cup of water to a bowl. Stir until completely combined.
STEP 2: Add food coloring and glitter.
Green, purple, orange, and red all work well for creepy Halloween slime.
STEP 3: Stir in 1/2 teaspoon of baking soda.
🔎 Baking soda helps firm up the slime.
STEP 4: Add 1 tablespoon of saline solution and stir until the slime starts to form and pulls away from the sides of the bowl.
STEP 5: Knead the slime with your hands until it reaches your desired consistency.
If it still feels sticky, put a few drops of saline solution on your hands and keep kneading before adding more activator.
STEP 6: Add plastic eyeballs and gently work them into the finished slime.
Eyeball Slime Variations
Once you have the basic recipe, change the colors and mix-ins to create your own creepy slime.
- Monster Eyeball Slime: Use green or purple food coloring and add plenty of plastic eyeballs or googly eyes.
- Bloodshot Eyeball Slime: Make red or clear slime and add eyeballs for a spooky vampire-inspired version.
- Ghost Eyeball Slime: Try white glue with googly eyes for a simple ghost or monster slime.
- Creepy Crawly Slime: Swap some of the eyeballs for plastic spiders, insects, or other Halloween creatures.
👉 For even more themes, explore our complete collection of Halloween slime recipes.
Why Does Slime Work?
Slime is a simple way to explore chemistry through hands-on play.
Washable school glue contains long chains of molecules called polymers. When the glue combines with a slime activator containing borate ions, those polymer chains begin connecting.
This process is called cross-linking, and it changes the glue from a runny liquid into stretchy slime.
Slime is also often described as a non-Newtonian fluid because it doesn’t behave exactly like an ordinary liquid. Stretch it slowly, and it flows; pull it quickly, and it may snap.
👉 Learn more with our slime science for kids.
Free Halloween Slime Printable
Want a Halloween slime activity you can print and use right away?
Grab the FREE Halloween Slime Challenge for even more spooky slime-making fun.
👉 GET THE FREE HALLOWEEN SLIME PRINTABLE
How to Store Eyeball Slime
Store homemade slime in a reusable plastic or glass container with a tight-fitting lid.
Keep the slime clean and covered between uses to help it last longer.
💡 If you’re making slime with a group, small reusable or condiment-size containers work well for sending individual batches home.
Slime Troubleshooting Tips
Slime too sticky?
Knead it for a few minutes first. Add a couple of drops of saline solution to your hands if needed.
Slime too stiff?
Too much activator can make slime rubbery, so add saline solution gradually.
Can I use another slime recipe?
Yes. You can use many of our basic slime recipes and simply add your Halloween colors and eyeballs.
Helpful Slime Making Resources
- Slime Activator List
- Best Slime Supplies
- How to Fix Sticky Slime
- How to Get Slime Out of Clothes
- Slime Science for Kids
More Halloween Slime Ideas
Try more spooky slime recipes:
👉 Or see the complete Halloween Slime collection.
Printable Halloween Slime Pack
Take your slime activities further with the Halloween Slime Pack, filled with themed recipes plus simple science, math, and printable activities.
You’ll find:
- Basic slime recipes
- Halloween-themed slime ideas
- Slime science activities
- Science vocabulary
- Slime math printables
- Seasonal activities for centers, groups, and classroom fun
More Halloween Activities
Halloween Science Experiments | Halloween STEM Activities | Halloween Art Projects
How can I get this color? Anyone know?
These slime eye treats are awesome. Now I wish we were having a Halloween party so I had an excuse to make them!
Thank you! Plan it as a fun activity or play date for next Halloween!
Very cute! Shared on my Messes & Memories facebook page.
Awesome thank you so much!