Science Projects And Inventions

YOU  NEED:

• A white flower such as a carnation
• Scissors (optional)
• 2 glasses of water
• Food colouring red and blue

Chances are that you have not seen a flower that is half red and half blue. However, it is easy to make one. Pick up the white flower and spilt the flower’s stem in half with the scissors or a fingernail. Cut off the ends of each stem.

You need to fill up two glasses with water. In the first pour some blue food colouring till the water becomes dark  blue. Pour the red colour in the second glass. Dip the stems that have been split up in each glass, as in the  illustration. A few hours later, the white flower becomes half red and half blue!

HOW DOES IT WORK?

The stem of a flower has many tiny tubes, half of which go to one side of the flower and half to the other side. Capillary action draws the coloured water upwards into each half of the blossom to give the flower of dual colour.