Here is the easy way how to make slime! This Galaxy Slime recipe is one of our favorite slime recipes because it is a simple way of making slime, has those beautiful galaxy slime colors and includes sparkles and stars too! This basic slime recipe is perfect for learning how to make slime with kids of all ages. Let’s make a colorful sparkly slime recipe!

Best Galaxy Slime Recipe

This glitter glue slime recipe is one of my favorites because it doesn’t not require slime ingredients like contact solution or borax which are not common in my house. Liquid starch is inexpensive and works really well for this fluffy slime recipe of many colors.

Related: 15 more ways how to make slime at home and Best Goop, Oobleck, Gak, Silly Putty, & Slime Recipes You Can Make

This really is the easy way to make slime and the sparkly star confetti made it even more fun!

How to Make Galaxy Slime

Whip up a batch of this DIY slime recipe for hours of fun sensory play and space slime entertainment.

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Ingredients Needed to Make Galaxy Slime Recipe

• 3 – 6 oz bottles of glitter glue
• 3/4 cup water, divided
• 3/4 cup liquid starch, divided (also called laundry starch)
• silver confetti stars
• liquid water colors — we used a variety of colors: purple, magenta, and teal
• Something to stir with like a plastic spoon or craft stick

Directions for Homemade Galaxy Slime Recipe

Step 1

Add the glitter glue into a bowl and stir in 1/4 cup of water and mix the glue mixture well.

Alternative: Use clear glue and add your own silver glitter.

Step 2

Add a few drops of liquid watercolor to create the desired color then add in the star confetti.

Alternative: Food coloring is always an option when making slime. We liked the watercolor paint for this one because of the vibrance.

Step 3

Pour in 1/4 cup liquid starch and stir to combine. The slime will start to separate from the sides of the bowl — remove it from the bowl and knead with your hands until it is no longer sticky and stretches easily.

Step 4

Repeat the slime making process with the remaining colors and ingredients to create three different colors of slime: blue, pink, and purple.

FINISHED GALAXY SLIME RECIPE

Stretch the layers together to create a gorgeous galaxy effect!

So cool, right?

How to Store Your Own Galaxy Slime

Use an airtight container to store your DIY galaxy slime. I love using leftover clear plastic food containers or a small zipping plastic bag. Generally homemade slime will last for several months if left in a sealed container at room temperature.

Our Experience Making Galaxy Slime

My son loves playing with homemade slime, and we are always looking for ways to make different and interesting recipes. He loved creating the different colors, then watching them mix and spread.

Step by Step Pictures of How to Make Slime

Here is a picture summary of the steps to making slime the easy way.

First Time Making Slime?

What ingredients do I need to make slime?

This is typically the first question people have. The basic ingredients for a simple slime recipe often include school glue (PVA glue)- we use glitter glue in this slime recipe, a slime activator (like borax solution, liquid starch, or saline solution containing boric acid and sodium borate) – we used liquid starch, and some water. Additional elements can include food coloring, glitter, or scents for customization.

How do I make slime without borax?

Due to safety concerns with borax, many people look for alternative activators. Solutions like baking soda and contact lens solution (which contains boric acid and sodium borate), liquid laundry detergent, or cornstarch recipes are often cited as substitutes. We use liquid starch in this slime recipe because traditionally liquid starch is made of vegetable products. You can check your packaging to see what your liquid starch ingredients might be.

Why isn’t my slime forming?

This is a common issue for first-timers if the slime isn’t turning out as expected. The problem could be with the proportions of ingredients, the type of glue used, or the activator. Some troubleshooting tips may be required, such as adjusting the amount of activator or ensuring all ingredients are mixed thoroughly.

How do I get the slime to the right consistency?

Achieving the perfect slime texture can be tricky. People often need to know how to thicken slime if it’s too runny (usually by adding more activator or glue) or how to thin it out if it’s too stiff (usually by adding warm water or lotion).

More Homemade Slime Recipes for Kids to Make

• More ways how to make slime without borax.
• Another fun way of making slime — this one is black slime that is also magnetic slime.
• Try making this awesome DIY slime, unicorn slime!
• Make pokemon slime!
• Somewhere over the rainbow slime…
• Inspired by the movie, check out this cool (get it?) Frozen slime.
• Make alien slime inspired by Toy Story.
• Crazy fun fake snot slime recipe.
• Make your own glow in the dark slime.
• Don’t have time for making your own slime? Here are a few of our favorite Etsy slime shops.
• You won’t want to miss these out on these galaxy crafts!
• We have a list of the best slime kits!
• See this list of concoctions for kids that make slime, goo, and more!

How did your easy galaxy slime recipe turn out?