We absolutely love science in our household, and one of our favourite experiments is this one, which is so quick and easy to do.
3 clear glasses or plastic beakers
2 different food colourings (blue and yellow work beautifully for this)
2 pieces of small kitchen towel or 1 piece of strong kitchen towel torn in half lengthways
– Fill 2 of the beakers to about the three quarters mark with water.
– Add a few drops of food colouring to each beaker (put one colour in each beaker).
– Place the beakers in a straight line with the empty one in the middle (or, to help gravity speed the process up a little, you can place the two beakers with colour in above the empty beaker, as seen in our photo).
– Roll up each piece of kitchen towel, placing one end of each piece in the beaker with the coloured water, and the other end of each piece into the empty beaker.
– Wait and watch as the water travels up each piece of kitchen towel and starts to drip into the empty beaker.
– The colours will mix so this is a great opportunity to guess which colour will be in the third beaker!
You can, if you are feeling adventurous, add a fourth beaker in with another starter colour – go and have fun with this! We would love to know how you get on!
Like this? Check out another experiment here.