This takes those blue carnations at the flower shop to a new level. Take this lesson in plant transpiration with the kids AND end up with a rainbow of flowers for the dinner table at the same time. Who doesn't like a 2 in 1? Now, if you are like us, you might think that having your kids observe white cut flowers change into the color of their water is not unlike asking them to watch paint dry. However it's actually a great activity for little ones with short attention spans. Any guesses how long it takes for the color to show up?

We were surprised to learn that it only takes an hour before you can see the color come through. Check out the Artful Parent's post on Painted Daisies to learn more about setting up this activity. We found reading the commenters tips useful as well.

(Image: Artful Parent)