We are getting science-y today and creating some beautiful ice crystals!
This is a project that will require a little patience, because it actually takes about a day for the crystals to form.
However, the results are so cool and worth the wait!

Lil’ Explorers Focus Skills


  • Pose “what” and “why” questions about their surroundings
  • Make predictions and perform experiments
  • Understand 3 of the 5 senses to make observations

Lil’ Creators Focus Skills


  • Pose “what,” “why” and “how” questions about their surroundings
  • Make predictions, perform experiments, and discuss results
  • Use 5-senses to make observations

Required Materials

*Affiliate Link


*Craft Stick





Heat Proof Jar

Step #1
Bring 3 cups of water to a boil.
(This is an adult ONLY task)
Step #2
While the water is going to a boil, twirl pipe cleaners in to icicles.
Step #3
Tie a string to the pipe cleaner.
Tie the other end of the string to a craft stick.
Step #4
Pour the boiling water into a heat safe jar.
We chose a jar that was clear so that we could check on the results.
(This is an adult ONLY task)
Step #5
Pour 1/3 cup of Borax into the hot water and stir until all the Borax is dissolved.
Step #6
Submerge the pipe cleaner into the hot borax solution.
Be sure to keep the pipe cleaner from touching the sides or bottom of the jar because as it crystallizes, the crystals will cause the icicle to be stuck to the jar if they are touching.
Step #7
Allow 24 hours for the crystals to form.
Pull the icicles out of the solution and allow them to dry.

Teacher Tip

As you are doing the experiment be sure to talk to your Lil’ about what they observe.


Talk about:

  • what they see (the color of the pipe cleaner, the crystals)
  • what they feel (fuzzy, heat)
  • what they think will happen
  • what did happen



Let us know what you think of this STEM activity.  We would love to seem some pictures of your icicles! We always love hearing your feedback Be sure to share our post on social media by clicking one of the buttons below!