This is an easy experiment that teaches kids about how flowers/plants absorb water. It's also fun for the kids to watch the flowers magically change color.
To do this experiment, you'll need: plain white carnations, glass containers, and food coloring.
1) Fill the glasses with water, and then add several drops of food coloring to each glass. We added about 15 drops of food coloring to each container. (We used blue, red, and green food coloring, and we found that the red food coloring had the best results.)
2) Then, make a fresh cut to each of the flowers, and put them in the containers.
After a few days, the flowers will start to change color. The kids will be able to see how the water (and the food coloring) travels up the stem of the flower and into the pedals.
I love simple experiments that make kids curious about "how things work", don't you? Have you ever done this colored carnations experiment with your kids?
Gina Bell (aka East Coast Mommy)