Making your very own tornado in a bottle is very simple and good for nearly any child to assist.
First: Find an eager scientist. Goggles and lab apron optional.
You will need a de-labeled soda bottle (with a cap), dish soap, glitter and a faucet.
Fill the bottle about 3/4 full with water.
Add two tiny drops of soap.
A healthy dash of glitter.
Flip.
Shake in circles.
Instant Tornado!
For additional floor safety consider super gluing the bottle shut.