Resources
Red and blue food colouring two glasses of water a leafy stalk of celery Step by step
* Talk with the children about how plants, as well as animals, must have water to stay alive.
* Add several drops of red food colouring to one glass of water and add several drops of blue food colouring to the other. Stir well.
* Cut the celery stalk part way up the middle.
* Put one 'leg' of the celery in the blue water and the other 'leg' in the red water.
* Leave in the glass overnight.
* See how the food colouring travelled up the stalk as the celery 'drank' the water. Ask the children what has happened to the leaves.
We would love to hear your tip ideas!
Those we use will either win a copy of Dorling Kindersley's Jobs People Do or Celebration! Find our address, fax and phone number on page 3.