What type of science is easy for kids?

One type of experiment that is easy for kids to explore is a floating egg in water. By adding salt, the salty water is denser and pushes the egg up, causing it to float. This explores density and is easier for kids to understand. Another type of experiment is the coke and mentos experiment. This shows kids how the bubbles in soda react with something that has a lot of little 'dimples' in it.