Chemistry worksheet on balancing chemical equations, using visual models and questions to teach the concept of atom conservation in reactions.

A worksheet titled "Balancing Act" explaining the principle of conservation of mass in chemical reactions, featuring a "Why?" section with a box detailing the importance of balanced chemical equations. Below, "Model 1" shows diagrams of atoms and molecules, followed by questions about the number of atoms in various molecules and formulas, including water, hydrogen peroxide, and aluminum sulfate.