A lab almost every day for the Stoichiometry Chapter. Start off with Observation of a Limiting Reagent, follow the next day with Observation of Excess Reagent. The students enjoy making chalk and drywall as they learn to calculate Grams to Gram and Percent Yield. The Putting it all Together Lab activity allows students to practice nomenclature, net ionic equations and stoichiometry. A great assessment of prior and current background knowledge.