Marshmallow Constellations Space STEM Activity
If your child loves building, creating, or anything space-themed, this marshmallow and toothpick constellation activity is made for them! It’s a simple, playful introduction to constellations that turns learning into something kids can see, touch, and even snack on when the activity is done. Be sure to grab the Constellation Cards from our shop, and keep reading for all the details!
You will need:
Mini marshmallows
Toothpicks
Constellation Cards (find them here!)
Instructions:
Download and print the Constellation Cards. Laminate if desired.
Have your child choose a card. Read the name of the constellation together and discuss the shapes you see.
Give your child some marshmallows and toothpicks and have them try to create the constellation they see.
Once you’ve done all the cards, encourage your child to come up with their very own constellation and name it!
Video
Watch this short video to see more!
What makes this activity so engaging is how naturally it sparks conversation. As your child works, you can talk about what each constellation might look like—a person, an animal, or a familiar shape in the sky. Afterward, take a moment to discuss why constellations matter and how they help us map the stars above us. It’s a simple way to build early science knowledge without feeling like a formal lesson.
This hands-on project fits beautifully into a quiet afternoon, a space-themed unit, or a family night focused on the wonders of the sky. It’s low prep, low mess, and full of opportunities for curiosity.
Shop
Grab your own Marshmallow Toothpick Constellation Cards in our shop!
Check out these other posts on the blog!
One of our very favorite classroom projects are these giant cardboard letters. This idea came from Miss Morgan’s Classroom. You can find her Instagram post all about them on her account (@miss_morgan_).