Walking Water - Rainbow

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watch water move between cups and change colour


7 see through cups
kitchen roll
red food colouring
yellow food colouring
blue food colouring


• Line up the 7 cups
• Pour water in 1st, 3rd, 5th and 7th cups – almost full
• Cup 1 and 7 add five drops of red
• Cup 3 add five drops of yellow
• Cup 5 add five drops of blue
• Put a piece of folded kitchen paper between pairs of cups
• Watch what happens


  • colours
  • experiment
  • rainbow
  • science

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