Walking water rainbow

How to make it

1. 

   1

   Line up the cups

   Set the 6 cups in a circle or a row, touching.

2. 

   2

   Fill every other cup

   Fill cups 1, 3 and 5 almost to the top with water.

3. 

   3

   Add the colors

   Have your child drop red in cup 1, yellow in cup 3 and blue in cup 5.

4. 

   4

   Fold the bridges

   Fold each paper towel into a long thin strip.

5. 

   5

   Build the bridges

   Put 1 end in a full cup and the other end in the empty cup next to it. Repeat all the way around.

6. 

   6

   Check back

   Look every hour. The empty cups fill with orange, green and purple.