Emma loved this simple color-matching activity that I made using paint chips. I took two identical strips, cut one and left the other one intact. Emma’s job was to match the shades. The differences in shades are subtle enough that she found this activity interesting and challenging. Johnny didn’t understand the activity, but he still thoroughly enjoyed playing with his own set of paint chips.
This activity provides a good opportunity to discuss the concept of light and dark colors, favorite shades of a particular color, if you would need more or less dye/food coloring to get a lighter/darker shade, etc.