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How to Make Christmas Light Slime that Really Lights-Up!

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Love Christmas and Christmas STEM activities? You’ll love this recipe for Christmas light slime!

“Christmas lights. Pretty!”

One of my fondest memories growing up was the reaction my siblings would have to Christmas lights.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Every time we would drive by a house with Christmas lights, they would freak out in the most adorable way possible, exclaiming over every single glow and glimmer. 

I’ve carried the extreme hype of Christmas lights over into my family, and now, my kids (and being honest, also me) are incredibly excited every time we catch a glimpse of any glittering Christmas light.

christmas stem challenge cards

This recipe for Christmas lights slime is a way to bring two of my kids’ biggest loves together: slime and Christmas lights.

If your kids loves Christmas lights as much as mine do, they will go nuts for this simple slime recipe. 

How to Make Christmas Lights Slime that Really Lights-Up!

If you’re looking for a fun and festive variation on slime, you’ll love this fantastic Christmas lights slime that can really light up. There are two ways to accomplish this:

1: Use a flashlight to shine through the slime and make the lights glow.

2. Use tonic water instead of regular water in your slime recipe, then shine a black light on it to reveal the glow!

The kids had so much fun with this recipe, and it’s the perfect easy STEM activity for the holiday season when you’re pressed for time.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

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What you need to make Christmas lights slime:

slime science lesson
  • Sta-flow laundry starch
  • Mini Christmas lights (non-electrical)
  • Flashlight

Making the Christmas Lights Slime

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Our favorite slime recipe always uses this basic starch slime recipe as a base. In general, you’ll want to use one part glue, one part water, and one part starch.

Mix the water and glue together, then add your Christmas lights.

Use the ceramic replacement bulbs so that there are no electrical issues with this activity.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Next, pour in your laundry starch and stir. We usually add food coloring, but since we’ll be shining a light through this slime, you want it to be as clear as possible.

We also thought it would look cool to try black slime as the base as well.

The lights will fall out of the slime pretty easily once it is solid, so I advise playing with this slime over a tray to catch any falling Christmas lights.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Stretch and play with the slime as normal.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Now, shine the flashlight on the slime and watch as the Christmas lights start to glow!

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

Turn the light on in the dark to make your Christmas lights slime look like real Christmas lights that you see hanging from houses in December.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!

It’s such a blast to see the lights glow from the light of the flashlight or black light.

Christmas is way more fun when it glows! Make this fun Christmas lights slime that has a STEAM element when you make the slime glow!
slime science lesson

Christmas STEM Activities by Grade

Christmas STEM Activities for Preschool

Christmas STEM Activities for Kindergarten

Christmas STEM Activities for 1st Grade

Christmas STEM Activities for 2nd Grade

Christmas STEM Activities for 3rd Grade

Christmas STEM Activities for 4th Grade

Christmas STEM Activities for 5th Grade

Christmas STEM Activities for Middle School

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