- 8 clear plastic cups
- an eyedropper
- blue, red and yellow food coloring
Simply begin by filling 3 clear plastic cups about halfway with water. If your child is anything like mine, she’ll want more water in the cup, but I’ve found the halfway mark is about the right amount to ensure it won’t spill when moved or the table is jostled.
Add a few drops of red, blue and yellow food coloring--one color in each cup. Explain to your child, if she doesn’t already know, that these are called the primary colors and that by mixing these colors together, she can create any of the other colors.