Have you heard of crunchy slime and wondered exactly what’s in it? Let’s learn how to make crunchy slime using foam beads, and I will also show you another type of crunchy slime with fishbowl beads! We have been experimenting with our crunchy slime recipes and have a few variations to share with you. Homemade slime is always an experiment when you try out new ideas!

HOW TO MAKE CRUNCHY SLIME WITH FOAM BEADS!

Have you heard of crunchy slime and wondered exactly what's in it? Let's learn how to make crunchy slime using foam beads, and I will also show you another type of crunchy slime with fishbowl beads! We have been experimenting with our crunchy slime recipes and have a few variations to share with you. Homemade slime is always an experiment when you try out new ideas!

Thick and moldable or oozy and slimy? It’s your choice when it’s time to learn how to make crunchy slime!

See an oozy crunchy slime vide here!

If you have played with store-bought floam before, you are on the right path to making crunchy slime. Foam beads in either white or a rainbow of color can be added to our basic slime recipes to make an awesome floam slime.

Now, if you thought I was going to be showing you a different kind of crunchy slime with fishbowl beads, you can find our crunchy fishbowl slime recipe here!

FOAM BEADS FLOAM SLIME

For the slimes on this page, we are using foam beads. There are a variety of colors and sizes to choose from.

These beads can also be added to a modified slime recipe to make a stiffer and more moldable slime substance quite like Floam. You can read about both of these methods below and give each a try!

All of our cool, homemade slime recipes start with mastering any of our 4 basic slime recipes. Once you have practiced making slime, there are so many awesome ways to add texture, make it unique, and experiment!

READ: 4 BASIC SLIME RECIPES TO MASTER

Slime starts with understanding the slime activators and glue needed to make the slime substance. The chemical reaction between your slime activator and glue is how slime is formed. You can read more about the science behind the homemade slime below.

READ: BEST SLIME ACTIVATORS

Making the best slime, starts with the best slime ingredients. We have a great list of recommended slime supplies to check out before getting started. Often people have slime failures because they aren’t using the right products. Ingredients matter!

READ: RECOMMENDED SLIME SUPPLIES

Of course, adding fun mix-ins is the best part of making homemade slime, and that’s what we did here. It’s time to learn how to make crunchy slime two ways: slimier and thicker!

CRUNCHY SLIME RECIPE INFORMATION

The following pictures use two of our basic recipes. For the slimier crunchy slime, I used the saline solution slime recipe. You can also use the liquid starch slime recipe and borax powder slime recipe.

For the thicker, moldable crunchy slime (floam), I used our borax powder slime recipe, but you can experiment with the saline solution slime recipe too.

Either of the two thicknesses can be made with clear or white glue. We like to use white foam beads with food coloring and white glue, and we like to use the rainbow or colored beads with clear glue. Of course, you can mix and match to make your own one of a kind slime.

YOU WILL NEED:

Make sure to check out our recommended slime supplies list.

  • 1/2 Cup Elmer’s PVA Washable School Glue
  • Slime Activator of Choice (measurements vary depending on activator)
  • 1/2 Cup Water
  • 1 Cup Mini Foam Beads (Large foam beads can also be used for a bit different texture)
  • Measuring Cups/Spoons
  • Mixing Bowls/Spoons
  • Slime Storage Containers

HOW TO MAKE CRUNCHY SLIME

Click on the recipe button below to learn how to make each basic slime. To turn it into crunchy slime, you will add 1 cup of foam beads to any basic slime recipe during the mix-ins step.

Keep reading below on how to make a thicker, more moldable floam version.

No more having to print out a WHOLE blog post for just one recipe!

Get our basic slime recipes in an easy to print format so you can knock out the activities!

—>>>  FREE SLIME RECIPE CARDS

 

Below you can see a slimier crunchy slime using our basic recipes from above and foam beads. The more foam beads the denser the slime, so you can choose toads even less!

If you choose to use the large rainbow foam beads that often come in the slime supplies kit, you don’t need a full cup. We tried it both ways though, and it’s up to you. These do not make the moldable floam as nicely as the mini foam beads do so stick to adding them to the basic recipes.

SUPER THICK CRUNCHY SLIME ALTERNATIVE RECIPE

If you want to learn how to make crunchy slime that is super thick and moldable like floam, you want to use the borax slime recipe. We have not tested the saline solution slime recipe for this thicker version, but you can!

However, there is one change to the original borax slime recipe! The important change to the recipe is to omit the water that is first mixed with the glue. You will still mix your borax powder with water but not the glue. Simply add the foam beads directly to the 1/2 cup of glue, stir, and continue with the directions. This crunchy slime will be very stiff.

Keep in mind, the more of something you add to slime like foam beads, the denser the slime will get. This also means that it will potentially become less stretchy and oozy. Have fun and experiment with the ratio of foam beads to slime.

Check out the thicker crunchy slime below using white glue and clear glue with a mix of foam beads.

CRUNCHY SLIME SCIENCE

We always like to include a bit of homemade slime science around here!  Slime is an excellent chemistry demonstration and kids love it too!   Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few of the science concepts that can be explored with homemade slime!

What’s slime science all about?  The borate ions in the slime activators (sodium borate, borax powder, or boric acid) mix 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. Until…

You add the borate ions to the mixture,  and it then 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 thicker and rubbery like slime! Slime is a polymer.

Picture the difference between wet spaghetti and leftover spaghetti the next day. As the slime forms, the tangled molecule strands are much like the clump of spaghetti!

Is slime a liquid or solid?

We call it a Non-Newtonian fluid because it’s a little bit of both!  Experiment with making the slime more or less viscous with varying amounts of foam beads. Can you change the density?

Did you know that slime aligns with the Next Generation Science Standards (NGSS)? 

It does and you can use slime making to explore states of matter and its interactions. Find out more below…

HOW DO YOU STORE SLIME?

Slime lasts quite a while! I get a lot of questions regarding how I store my slime. We use reusable containers in either plastic or glass. Make sure to keep your slime clean and it will last for several weeks. I love the deli-style containers I have listed in my recommended slime supplies list.

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 or grocery store or even Amazon. For large groups, we have used condiment containers and labels as seen here.

We have the best resources to look through before, during, and after making your crucnhy slime! Make sure to go back and read the slime science above too!

No more having to print out a WHOLE blog post for just one recipe!

Get our basic slime recipes in an easy to print format so you can knock out the activities!

—>>>  FREE SLIME RECIPE CARDS

ENJOY OUR EASY TO MAKE CRUNCHY SLIME RECIPE ANYTIME!

Try more fun homemade slime recipes right here. Click on the link or on the image below.

liquid starch slime homemade recipes