Glitter, hearts, and stretchy sparkling slime. Nothing says Valentine/s Day like a batch of homemade slime! I might be a little obsessed with the latest Valentines Day Slime! Honestly, it’s because it’s so easy and quick to make our  homemade slime recipes. I wanted to tinker a bit with the glue I used this time because I picked up these little bottles of glitter glue {but you don’t necessarily need glitter glue} at the dollar store.

GLITTERY VALENTINES DAY SLIME SCIENCE FOR KIDS!

This is a beautiful, sparkly and very stretchy Valentines Day slime. It takes minutes to make, lasts a long time, and never stops being fun to play with! We made another exciting version of this Valentine’s Day theme slime with tons of glitter, sequins and confetti.

MAKING YOUR VALENTINES DAY SLIME RECIPE

All of our holiday, seasonal, and everyday theme slimes use one of our 4 basic slime recipes that are super easy to make! We make slime all the time, and these have become our go-to favorite slime making recipes. You can also learn how to make holiday slimes special here.

I will always let you know which recipe we used in our photographs, but I will also tell you which of the other basic recipes will work too! Usually you can interchange several of the recipes depending on what you have for slime supplies.

Make sure to read through our recommended slime supplies and print out a slime supplies checklist for your next trip to the store. After the supplies listed below you will see click here black boxes for slime recipes that will work with this theme.

Towards the bottom of this article you will find some of our best slime making resources to learn how to make the best slime ever. Plus you can learn about slime failures, slime science, and storing your homemade slime!

YOU MIGHT ALSO LIKE:15 More Awesome Valentine’s Day Science and STEM Activities to check out here.

You can even get free printable slime labels for your slime to give as non candy treats!

VALENTINES DAY SLIME SUPPLIES

Dollar Store Glitter Glue {you can also make a cool Valentine’s Day sensory bottle with this glue}

*NOTE: If you don’t have this type of glue, just use a full 1/2 cup of clear glue with plenty of silver glitter added!

Clear Washable PVA Glue {see our recommended slime supplies list for favorite brands}

Extra Glitter {optional but we used some!}

Liquid Starch

Water

1/2 Measurer, Bowl, Spoon

I stand by my original homemade liquid starch slime recipe for our Valentines Day Slime! Did you see last year’s Valentines Slime? It’s one of our most popular.

Make Glitter Glue Valentines Day Slime

The recipe calls for a half cup of glue and a half cup of water mixed together. Squeeze the glitter glue into the half cup and then add clear glue to finish up the half cup.

Add glitter if desired. Mix the glue and water together in a bowl. Measure out a 1/2 cup of liquid starch and pour into the glue and water mixture.  Stir as long as you can with the spoon and switch to kneading with your hands.

Check out step by step pictures of the process by checking out our metallic slime recipe complete with a video!

EXTRA SLIMY RESOURCES

If you scroll down, you will find click here boxes with our most popular slime topics that you may find helpful.

Slime is easy to make, but it’s important that you read the directions, use the correct ingredients, measure accurately, and have a little patience if you don’t succeed the first time. Remember, it’s a recipe just like baking!

SLIME FAILURES

The biggest reason for slime fails is not reading through the recipe! People contact me all the time with: “Why didn’t this work?”

Most of the time the answer has been lack of attention to supplies needed, reading the recipe, and actually measuring the ingredients! So give it a try and do let me know if you need some help. On a very rare occasion I have gotten an old batch of glue, and there is no fixing that!

STORING YOUR VALENTINES DAY SLIME

I get a lot of questions regarding how I store my slime. Usually we use a reusable container either plastic or glass. If you keep your slime clean it will last for several weeks. And…if you forget to store your slime in a container, it does actually last a few days uncovered. If the top gets crusty just fold it into itself.

If you want to send kids home with a bit of slime from a camp, party, or classroom project, I would suggest packages of reusable containers from the dollar store. For large groups we have used condiment containers as seen here.

THE SCIENCE BEHIND THE HOMEMADE VALENTINES DAY SLIME RECIPE

What’s the science behind the slime? The borate ions in the slime activator  {sodium borate, borax powder, or boric acid} mixes with the PVA {polyvinyl-acetate} glue and forms this cool stretchy substance. This is called cross linking!

The glue is a polymer and is made up of long, repeating, and identical strands or molecules. These molecules with flow past one another keeping the glue in a liquid state.

The addition of water is important to this process. Think about when you leave a gob of glue out, and you find it hard and rubbery the next day.

When you add the borate ions to the mixture, it starts to connect these long strands together. They begin to tangle and mix until the substance is less like the liquid you started with and is thicker and rubberier like slime!

Read more about slime science here!

HERE’S SOME SLIME MAKING RESOURCES!

Did you know we also have fun with  science activities too? Click on all the black boxes below to learn more.

I hope you really enjoy making homemade slime with your kids this year! We make slime all the time and would love to help you with any questions you might have! Make sure to check out all our cool science and STEM activities for the whole year.

AWESOME AND EASY VALENTINES DAY SLIME KIDS WILL LOVE!

And if you need more Valentine’s Day inspiration, click on the photos below.