Color Changing Slime Experiment

This really was the fun part…
Coming up with ways to make the slime change color. Putting it on soda cans, frozen water bottles and heat packs. Holding it with hands that have held something hot or cold. Breathing on it. Using it as a thermometer (the pigments we used go clear at 71.6 ºF so we could tell whether it was hotter or colder than that.) This is really fun experiment. Try different pigment colors with different food coloring.