This lab is completed with simple materials -- the only supplies you need are beaker, vinegar, baking soda, steel wool, and a thermometer. Students will complete a lab objective and review some vocabulary. Then, they will make a prediction, test their prediction with a short experiment, write data and conclude whether the reaction is endothermic or exothermic. Two reactions will be performed. This is a classic lab that is both student-friendly and teacher-friendly.