Sometimes when the sun is shining and it is rainy somewhere at the same time, you can see a rainbow. It's caused by the light from the sun being broken up by water droplets in the atmosphere. The sun's light is "white", but the water droplets break it up into seven different colours, always in this order:
Red, orange, yellow, green, blue, indigo and violet.
The walking water experiment is a perfect science experiment for preschoolers as it is easy to set up and it gives children the opportunity to discover what happens when they mix primary colours together.
Light table :
-Rainbow colors of cello sheets
Cut the cello sheets in different shapes and let your child have fun creating and mixing with colors.
Rainbow matching game: