Lab Aids Conservation of Matter Kit - Science Classroom Supplies for Chemistry Experiments & STEM Education - Perfect for Middle School & High School Labs

In this activity students investigate the difference between closed and open systems and confirm, the Law of Conservation of Matter. They conduct and compare a chemical reaction taking place in a closed system with one occurring in an open system. They observe that while the mass of a gas-producing reaction decreases in an open system, it remains the same in a closed system. Their data is also used to reinforce the molecular nature of all matter, including gases.