Also on these boards
Cool science experiment for kids! Rainbow Roses Get white of cream colored long stem roses. (Carnations work well too). Cut the stem according to the picture, you will then place 4 glasses of food color dyed water together. Put one piece of stem per color and allow the flower to soak up different colors.
Rainbow roses -- not sure if I think this is cool or hokey. Or both. The science behind it is cool but I think I would have liked it best in junior high. Might try it as a science experience with the kids though.