One day last week, my son came to me and said, "Mom, you have to do this with your kids at school!" With determination, he taped it up on our morning message board for all of the children to see, along with a message to, "Have fun!" Well, how could I not do it? Once the children saw it, they all wanted to complete this experiment. We ended up using white carnations as they were more easily available. If we do this again, however, I will be sure to get the roses because it was a challenge…