In this fun and easy slime science experiment for kids, we’re going to make glow in the dark slime to explore and investigate. This is a great sensory activity that little ones really enjoy and the glow slime lends itself well to space themed lessons or activities.  
  • Liquid starch
  • Clear glue
  • Green food coloring
  • Glow in the dark powder
  •  Items to excavate. I love using little plastic aliens and other space themed items. Small items that glow are also fun additions to the glow slime exploration excavation!


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  1. Pour ¼ cup of the liquid starch into a bowl.
  2. Mix in a ½ tsp of the glow in the dark powder.
  3. Add a drop or two of green food coloring of desired.
  4. Now add ¼ cup of clear glue.
  5. Continue mixing until slime forms. You may also want to pour the mixture into a ziplock bag and squish the ingredients together until slime is formed.
  6. Add your excavation items. 
  7. You can charge the slime with any light, flashlight, or black light.
  8. Take the glow in the dark slime into a darkened space and enjoy discovering the items you have hidden in the the glowing concoction.



I hope you enjoyed this super quick tutorial and enjoyed creating your own glow in the dark slime to investigate and explore. This glow slime exploration excavation is very easy to make and a lot of fun!
Pro tip: Use this activity to create some excitement around discussions or lessons regarding planets, stars, outer space and more!
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Happy Excavating!
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