I LOVED doing this experiment! So easy and so interesting! All you need are some white flowers, glasses/vases/cups, water and some coloured food dye!
Fill each glass with water and put a few drops of food dye in each one:
Place one stem in each glass then wait - that's it!
Check back on the flowers periodically - or if you're like us, constantly! After a few hours the flowers will begin to change colour:
After 24hrs there is a significant change!
After 48hrs the flowers are beautifully coloured:
Why do the flowers change colour? The flowers change colour as part of a process called transpiration. Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.