The peel also contains a lot of air, making it less dense than the inside of the orange. You can learn how to do all sorts of cool science tricks like this on Friday November 10 at the Museum, when we present our Science Magic Show for kids ages 5-10. Wednesday Cabbage juice may not be on your list of favorite beverages. But take my word for it - cabbage juice can be pretty magical stuff. These are particles that carry a strong positive charge.
Bases are just the opposite.
They have negatively charged ions called hydroxyl ions. Soap, eggs, and most detergents are common bases. The pH scale, which goes from 0-14, is used to compare acids and bases. Acids have low pH numbers, while bases are high on the scale. And tomorrow, we'll show you how it works.