- Take 2 glasses of water.
- Add lots of salt to one of them.
- Stir salt water.
- Now you drop a cherry tomato in one of the glasses. ( the origanal project used a raw egg, but we never have eggs, and a cherry tomato works just as well)
- Then drop it in the other glass.
The tomato should float in the salt water and sink in the unsalted water. Elijah loved taking it out of one and putting it in the other;)
Thank you Bill Nye the Science Guy.