Slime is having a moment. Kids of all ages are having a blast making and playing with stretchy, stringy slime. This galaxy slime recipe uses the traditional Borax powder, which gives the slime a bouncy, firm texture. The slime breaks a little easier than if you use laundry starch, but the firmer texture means it is less messy for kids. As Borax is a chemical, do not make this slime recipe for any child who would be likely to try and eat the slime. Always have kids wash hands after playing with slime to prevent any ingestion of the Borax powder. This Galaxy slime would pair perfectly with learning about the night sky! Check out these other awesome slime learning activities!

– Life Over C's Make galaxy slime with Borax powder slime recipe. Simple slime for kids

Recommended Grade Level:

Materials for the Galaxy Slime:

  • School Glue
  • Black Dye
  • Borax
  • Star Mini Erasers
  • Glitter

Please note: some kids seem to be extra sensitive to Borax powder, giving them red and itchy skin. If you notice any redness on your child or they complain of itchy skin while playing with Borax slime, try a Borax-free slime instead.

– Life Over C's Make galaxy slime using this classic Borax powder slime recipe. Kids will love creating their own universe of slime with this simple slime recipe.

Mix one 4 ounce bottle of white glue with 1/2 a cup of water and enough black dye to dye the glue completely black. At first, our slime looked purple until we added more black dye to it. Add white glitter to your glue mixture for background sparkle.

– Life Over C's Make galaxy slime using this classic Borax powder slime recipe. Kids will love creating their own universe of slime with this simple slime recipe.

Mix one cup of warm water and one teaspoon of Borax powder until dissolved. Pour the Borax solution into the glue solution.

Stir with a fork until completely combined. Work the slime between your hands until it is completely dry and no longer sticky (check for hidden glue pockets).

– Life Over C's Make galaxy slime using this classic Borax powder slime recipe. Kids will love creating their own universe of slime with this simple slime recipe.

Add stars to your galaxy slime and you are ready to play!

– Life Over C's Make galaxy slime using this classic Borax powder slime recipe. Kids will love creating their own universe of slime with this simple slime recipe.

Make this slime more educational by talking about how slime is made. When glue mixes with Borax powder, polymer chains form between the two mixtures, creating stretchy slime.

Little ones will also enjoy counting the number of star erasers in the slime.

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– Life Over C's Make galaxy slime with Borax powder slime recipe. Simple slime for kids

Planning for a Space Theme? We’ve done all the work for you!

We now have interactive thematic lesson plans for toddlers (18-35 months) AND preschoolers (3-5 years)! Get ready for fun and learning with unit lesson plans for your SPACE THEME. Explore a variety of themed hands-on activities! Easy to follow lesson plans include activity modifications and adaptations to meet the needs of all learners. For more information, click on the graphics below:

Getting Ready for Your Space Theme?

Stock your library with the BEST Space Books for Kids!

Explore outer space through engaging, multi-sensory books that your kids are just going to LOVE!

– Life Over C's galaxy slime sensory activity for kids

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author avatar
Kim Staten Owner and Curriculum Designer
Kim Staten is a mother of four children ages 20, 19, 16, and 12. Kim has taught at the preschool, kindergarten and early elementary levels for 16 years. With extensive experience working with special needs children, including her own children with special needs (Rett Syndrome, autism, anxiety, and ADHD), she creates hands-on curricula and activities that are great for working with children of all abilities in the classroom and at home. Hands-on, accessible activities are her passion. 

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