We did science with mell. We did this to see if water could walk on its own. You will need: 3 jars, water, 2 types of coloulour dye and handy-towels.
First get 2 of your jars and fill them up with water, make sure there's the same amount of water! Then get your 2 of your coloured dyes you got ready and pour one colour into 1 jar full of water and pour the other colour you chose into the outher jar with water in it.