Wednesday, 25 July 2012

Some Days You Have To Wander and My Favourite Bit Of Science Ever

The Best Way To Find Something Exciting Is To Explore

Take a bus to the next district, town or village and ask at the Library or Tourist Information office for a local map, go somewhere you've never been before - a different park, library, garden, museum or family pub that you didn't know was there. Let your kids be your guide, buying tickets and reading the map.

Best Science Ever: Colour Changing Plants

You will need:
  • A white or pale coloured flower with a reasonably long and thick stem - a carnation works well.
  • A sharp knife
  • 2 hi-ball glasses, or other tall thin containers
  • Water
  • Food colouring
How to do it:
  • If your flower in shop bought, cut an inch or two off the bottom of the stem before you start.
  • Fill both glasses 2/3rds full with water, then add a few drops of food colouring to one glass. Put them next to each other in a sunny spot, as close together as you can.
  • Then cut the flower's stem in half lengthways from the bottom to about 2/3rds up the plant.
  • Put the flower into the 2 glasses of water, one half of the stem in each.
  • Leave for about 2 hours, then see what's happened.
Take it further:
  • What happens if you add food colouring to the other glass?
  • Can you use several glasses and flowers to make different colour combinations?
  • Do some types of flower work better than others?
  • Does anything else change how quickly it works?

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