If you have a love for everything under the sea, you MUST create a fun ocean slime with the kids. Whether your little mermaid loves playing with homemade slime or you are still finding Nemo, this is the perfect summer slime to make for your kids. My son can’t get enough of ocean activities.

Make Ocean Slime For Summer

We might just love the beach and ocean more then we love our homemade slime recipes…Who doesn’t!

The ocean is a special place for us. Every chance we get, that’s exactly where my son wants to be. Whether it’s the rocky shoreline of Maine or the white sand beaches of North Captiva, the beach is paradise.

Use your kids’ love of special places, movies, or hobbies to inspire your next slime creation. Just like our love of the ocean inspired us to make this AMAZINGLY simple ocean slime recipe with a playful under the sea theme!

Basic Slime Recipes

Our easy, “how to make” slime recipes show you how to master slime in 5 minutes or less! We have spent years tinkering with our favorite basic slime recipes to make sure you can make the BEST slime every time!

We believe slime shouldn’t be disappointing or frustrating! That’s why we want to take the guesswork out of making slime!

  • Discover the best slime ingredients and get the right slime supplies the first time!
  • Make easy slime recipes that really work!
  • Achieve awesome slimy consistency the kids’ love!
Playing with Homemade ocean slime recipe with saline solution Pin

Which Slime Recipe To Use?

We have several basic slime recipes that can all be used for this clear blue ocean slime recipe. You decide which one works best for you depending on what slime activator you want to use. This allows for some flexibility depending on where you live in the world! Not everyone has access to the same ingredients!

Each of the basic slime recipes below have the full step by step photos, directions, and even videos to help you along the way!

In the recipe below, we used our number one saline solution slime recipe. This is our #1 most viewed slime recipe, and we love it. Awesome stretchy slime in no time is my motto!

Helpful Slime Making Resources

These are the best resources to look through before, during, and after making your homemade ocean slime! We talk more about slime science below.

A Bit Of 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…

Get your FREE printable ocean slime recipe challenge!


Ocean Slime Recipe

Let’s get started making our ocean slime together by gathering all the right ingredients for slime we need to have on hand! Keep your pantry stocked and you will never have a dull slime making afternoon…

Also check out our swirling ocean slime with liquid starch, sand slime recipe and fluffy ocean slime!


  • 1/2 cup of clear Washable School Glue
  • 1/2 cup of water
  • Food Coloring
  • Glitter
  • 1/2 Tsp Baking Soda
  • 1 TBSP Saline Solution
  • Fun Ocean Animals (repurpose in our icy ocean melt science activity!)
  • Glass Gems
saline solution ocean slime recipe suppliesPin


STEP 1:  In a bowl mix 1/2 cup water and 1/2 cup of glue well to combine completely.

STEP 2: Now’s the time to add a few drops of blue food coloring and glitter.

Mixing ocean slime recipe with clear glue and saline solutionPin

STEP 3: Stir in 1/4 to 1/2 tsp baking soda.

You can play around with how much you add but we prefer between 1/4 and 1/2 tsp per batch. I get asked all the time why do you need baking soda for slime. Baking soda helps to improve the firmness of the slime. You can experiment with your own ratios!

STEP 4: Mix in 1 tbsp saline solution (the slime activator) and stir until slime forms and pulls away from sides of the bowl. This is exactly how much you will need with the Target Sensitive Eyes brand, but other brands may differ slightly!

If your slime still feels too sticky, you may need a few more drops of saline solution. As I mentioned above, start by squirting a few drops of the solution onto your hands and kneading your slime longer. You can always add but you can’t take away.  Saline solution is preferred over contact solution.

STEP 5:  Start kneading your slime! It will appear stringy at first but just work it around with your hands and you will notice the consistency changes. You can also put it in a clean container and set it aside for 3 minutes, and you will also notice the change in consistency! 

Simple how to make ocean slime recipe for kids summer sciencePin

How To 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.

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.

More Fun Slime Recipes To Try

If your kids love playing with slime, why not try more favorite slime ideas…

Awesome Ocean Activities For Kids

Click on the link or on the image below for more awesome ocean activities for kids.

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