This complete 4-week Introduction to Chemistry unit covers matter, mass, density, compounds & molecules, physical & chemical properties, and physical & chemical changes. Designed for middle school NGSS standards and SAVVAS textbooks, this unit includes lessons, activities, labs, and discussions to keep students engaged and thinking critically. Save hours of planning with this complete 4-week Introduction to Chemistry unit. Everything you need is included: daily lessons, ready-to-use slides, labs