We conducted an experiment to demonstrate how particules move further apart when heat is added. Before we added heat to the metal ball, it would fit in the circle and could be removed. Once heat was added, the particles inside the metal moved further apart and caused the metal to expand. It would not fit back outside the circle again until it cooled and the particles moved closer together again. I love the look of curiosity on Eddy's face! It was his day to sit at my desk- he earned it from our scratch-off reward cards!
