The walking water experiment is a fun way to learn about colours and absorbency. Play around with the mixing, the paper towel lengths, cup sizes, water levels, and see what you can make happen.
Materials you will need:
- 7 cups
- 2 spoons
- Red, yellow and blue food colouring
- 6 pieces of paper towel
How to do the experiment:
- Line the cups up in a row and fill each one with water.
- Then add 5 drops of red food colouring to the first and 7th cups.
- Add 5 drops of yellow food colouring to the 3rd cup.
- Add 5 drops of blue food colouring to the 5th cup.
- Take a half sheet of paper towel and fold it length wise twice.
- Trim off some length so that when the paper towel is bent of the sides of 2 cups it doesn’t stick up too far into the air.
- Place a paper towel from cup 1 to cup 2. Another from cup 2 to cup 3. Another from cup 3 to cup 4. And so on until the end of the last paper towel is sitting in cup 7.
Now you watch. It’s fascinating to see the results.
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