This unit explores the properties of matter through a series of activities. Students will identify properties such as color, hardness, flexibility, and durability of different materials. They will also determine whether household materials are useful or harmful by reading product labels. A lab experiment involves observing physical and chemical changes when combining substances like antacids, baking soda, vinegar, and more. The goal is for students to recognize materials that react with oxygen and heat and differentiate between physical and chemical changes.