Friday, January 12, 2018

Salt Crystal Hearts (Valentines Day Science Experiment)

This Valentine's Day, mix the season with a fun science activity that even kindergarten kiddos can participate in. Kids will love making salt crystal hearts and transforming boring table salt into beautiful crystals! There are so many fun things to learn with this hands on science activity. Try making hearts of various sizes and see which one makes the biggest crystals.

Heart Salt Crystals Experiment is the perfect, fun valentines day science project for toddler, preschool, kindergarten, first grade, 2nd grade, and 3rd grade students.


How to Make Salt Crystal Hearts

Use the following instructions to learn how to make salt crystal hearts with your kindergarten kiddos.

What you will need to make salt crystal hearts:

  • Jars
  • Pipe cleaners
  • Scissors
  • Salt
  • Water
  • Pencils (1 per jar)
Since this project requires boiling water, it should not be done by children alone. Adult supervision is recommended for this activity.

Fill your jars with water, then pour that water into a small sauce pan on the stove. Heat to boiling, then add salt until crystals start to form on the surface of the water. Remove from heat. Pour the hot water into the jars. Take two pipe cleaners and twist them together. Form the pipe cleaners into a heart shape. Use a small piece of pipe cleaner to attach the center of the heart to the pencil. This will keep it suspended in the water. Wait 24 to 48 hours for the salt crystals to form. The longer you wait, the bigger the crystals will get. Place the crystals on a paper towel to dry.

Once dry, use a magnifying glass to inspect the crystals. What shape are they? Once finished, you can hang the crystals in the classroom or at home for a fun Valentine's Day decoration!

Salt Crystal Heart Scientific Concepts

This experiment teaches children about solutions, evaporation, ionic bonds, and dissolving solids. Kids will be begging to learn more about these concepts when they are done with their crystal hearts.

FREE Valentine's Day Printables



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