If you are starting your students on chemistry, this is a great activity to teach balancing equations. It shows how matter is conserved, and is balanced on both sides of the equation. This can be done with poker chips, math manipulative, or other tools you have in house. I used some squares of construction paper for this. This lab demonstrates the Law of Conservation of Mass. The amount of atoms (math tiles or construction paper) that you start with equals the amount that you end with. You can a