Having Fun With Color Changing Slime!

Thermochromic Color PowderEveryone knows children love playing with slime. With this fun and easy chemistry project, you can combine with it the color-changing property of a mood ring and add some more fun to your children’s playtime.

For this activity, you will need the following:

  • 1/4 cup of white glue
  • 1 tablespoon water
  • 3 teaspoons thermochromic powder pigment
  • 1/4 cup liquid starch
  • A few drops of food coloring

To make the slime:

  1. In a small bowl mix together the white glue and water.
  2. Sprinkle your choice of thermochromic color powder into the mixture of glue and water and blend together making sure that there are no clumps.
  3. Stir in the food coloring.
  4. Add the liquid starch and stir it in completely. At this point, you can use your hands to mix it thoroughly.
  5. Discard any excess liquid left from the mixture. Your slime is now ready!

How to play with your thermochromic slime:

The slime gets its color-changing power from the thermochromic powder you added. Thermochromic materials change colors when there is a change in temperature. So to make the most of your color-changing slime, try exposing it to different ranges of temperature.

  • Put it over containers containing some cold drinks or on the sides of mugs with hot coffee.
  • Place it in a microwave for a few seconds.
  • Blow hot air on it using a blow dryer or even just your breath.
  • Spin it around like a jump rope, the movement of air is enough to cool it and change color.
  • Even your hands are enough to obtain a color change!

To store your slime, place it in an airtight container or a resealable bag up to a month. You can place it in the refrigerator to discourage the growth of molds. If the slime seems to be drying out, just add a few more teaspoons of liquid starch and it’s as good as new! Experiment with different combinations of thermochromic powder and food coloring and have never ending fun with your kids!