Time: 5 minutes
Equipment: jug of water; eye dropper; cotton balls; dish
Shape a cotton ball into a ‘cloud’. Hold it above the dish. Using the eyedropper, drop water onto the cotton ball ‘cloud’. After enough drops have been added, it will begin to ‘rain’ from the ‘cloud’. If you look carefully, you will be able to see the ‘raindrops’ forming at the bottom of the ‘cloud’.
Squeeze the cotton ball out, to empty all the ‘rain’ out.
Look in the dish, and you will be able to see how much water ‘rained’ from the ‘cloud’.