The purpose of this product is to guide an inquiry-based lab to explore the conservation of mass in an open system vs. a closed system. This is designed to be used with the lab guide sold from 7AM Science, but can also be used on its own. What's included: Introduction to the laboratory Equipment and material portion of the lab (may need to be modified if changes are madeA detailed methodGuiding questions to identify the purpose, hypothesis and variables in the laboratory experiment as well as to