Want a magic coin trick that doubles as a science experiment for kids? Try The Magical Jumping Coin! It's simple and fun.
First chill a glass bottle and a coin by placing them in cold water. Place the coin on top of the bottle. Wrap your hands around the bottle and wait.
The coin will jump up off the bottle! The reason is that the warm air created with your hands pushes upward with more strength than cold air, making the coin jump!
For younger kids, the experiment itself doesn't provide hours of entertainment, but a bowl of water, a coin and a bottle do! We did end up with a wet table, though. Good thing cloth diapers are very absorbent.
For more of our easy science activities visit our Giant List of Indoor Activities for Kids