Over the past week, we have learned about atoms. We spent a lot of time trying to understand how tiny atoms really are. There are more atoms in one grain of sand than there are grains of sand on the beach. Another comparison was if we made a grapefruit the size of the Earth, each atom would be the size of a blueberry. Then, if you enlarged the blueberry to the size of a football stadium, the nucleus would be the size of a MARBLE. This was crazy, if you think about how big the world is, and how small the blueberry is.