Use these simple methods and you'll easily get 30 foot plumes of soda flying into the air (without any special restriction device screwed to the top of the bottle) to the delight of any kid (or adult).
What are you really doing when you whip cream into butter? You're adding air to the mixture! Try this simple experiment that you get to eat afterwards.
Learn about balance and your center of gravity with this fun Hands-ON experiment. Note: you'll need a partner so this is great for parents and children to do together!