Easy Valentine Slime Recipe

This easy Valentine slime recipe is a fun Valentine’s Day activity for kids.

Kids love sinking their hands into slime and playing with it. They are fascinated about how it feels and moves.

With just a few ingredients, you can turn school glue into a pretty glittery slime with little hearts in it.

Always supervise children when making and playing with slime.

Want more sensory play ideas? Check out our Leprechaun Slime Activity and unicorn sensory bin with pink oobleck.

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Valentine’s Day Slime for Kids

There’s no denying that kids absolutely love playing with slime. I may not always want it in my house, but whenever I let them make some it is a big hit.

I do love that making and playing with slime is a science activity. It’s the perfect opportunity to discuss the science behind slime as well as experiment with how different ingredients affect the look, feel, and stretch.

The chemical reaction that occurs between glue and slime activator changes it into a non-Newtonian fluid. Learn more about it in our Is Slime a Liquid or Solid? science experiment.

What a great way to get kids interested in science!

It’s also fun to give activities a special theme which can keep kids interested when reintroducing an activity.

You could even mix up and package several batches of Valentine slime for kids to give out for Valentine’s Day! These containers are perfect for this.

Valentine Slime Ingredients

• 2 (6 ounce) bottles Elmer’s Glue in clear
• About ½ cup warm water
• ½ teaspoon baking soda
• 1½ tablespoon contact lens solution (containing boric acid)
• About 1 ½ tablespoon glitter in white, silver, or iridescent
• Heart foil confetti

Can You Use Glitter Glue?

Yes, you can use glitter glue instead of mixing the clear glue with glitter. You will more saline contact solution when mixing with glitter glue.

Slime Activator Options

Explore the look and feel of different batches of your Valentine slime made with different activators. This is also helpful for figuring out an activator substitution based on what supplies you have on hand.

Also, clear glue has a different viscosity than white glue and needs less activator.

Saline solution – In this easy slime recipe, we used contact lens solution and baking soda.

Liquid Starch – We used liquid starch in our leprechaun slime. Start with ¼ cup and mix it in, then add a little more as needed to achieve the slime consistency you prefer.

Borax solution – There are lots of uses for borax powder, and it’s often used in homemade slime recipes. Dissolve 1 Tablespoon of borax in 1 cup of warm water. Add a little at a time, then mix the slime, and continue adding activator and mixing as needed.

How to Make Valentine Slime

Always wash your hands before and after making slime. You may also wear gloves during the mixing and kneading process if you want.

Empty the glue bottles into a large bowl. 

Fill the empty glue bottles about ⅓ full with warm water (about ¼ cup each) and seal with the lid. Shake well to combine the remaining glue with the water and pour it into the bowl. 

Stir to combine the glue and water mixture. Add the baking soda to the glue and stir to mix thoroughly.

Add glitter and confetti and stir into the glue mixture. Add contact lens solution to the glue mixture and stir well. 

Please Note: regular glue requires less contact lens solution than glitter glue. Add the contact lens solution slowly, mixing between additions, and add only enough to bring the glue together into a soft ball.

Remove the slime from the bowl allowing any excess liquid to remain in the bowl. The slime will feel sticky. 

Begin to play with the slime, kneading it like bread dough, to thoroughly mix the ingredients together. 

The slime is ready when no longer sticky. Store your Valentine slime in an airtight container in the refrigerator when not in use.

Valentine Slime Is Too Sticky

If it’s still really sticky after mixing and kneading the slime, add a little bit more contact solution (or whichever activator you are using).

Valentine Slime Is Not Stretchy

If your slime breaks apart right away and doesn’t stretch after mixing, it may have too much activator. Or, maybe you put away the Valentine slime and now a couple days later it is not stretchy anymore.

The good news is, you can often fix rubbery slime that won’t stretch. You can try putting the Valentine slime in some hot water and kneading it in until it starts stretching. Or you can add a little bit of lotion and knead it into the slime.

More Valentine’s Day Activities:

• Valentines STEM With Fizzy Bath Bombs
• Stained Glass Valentine Heart Cookies
• Printable Zoo Animal Valentines
• Printable Valentines for Pencils and Bubbles
• Valentine Crafts for Toddlers

More Kids Activities:

• 30 Science Activities for Kids
• 20 Superhero Activities
• Galaxy Oobleck
• Halloween Spaghetti for Sensory Play