Colour-changing Flowers!
 

Try this - it amazes the kids! :wide-eyed

Get a nice bunch of white flowers with plenty of open buds - carnations work best.:yes: Half-fill some jugs/glasses/anything that'll hold water and support stems and add a good squirt of food colouring to each one, making sure each is a different colour.:thumbsup: Add your flowers, wait a couple of hours (that's all it takes), then check out your 'new' blossoms!:D For even more 'WOW' factor, split a stem to approx 6 inches up and place each half in a different colour jar!!! :dizzy:

Enjoy! :cheerful:

Also posted in 'Flowers and Plants' and 'Sciences and Processes' with a scientific explanation!