Teach and assess Chemistry: Properties of Matter Section 3 with 22 lesson slides, a student worksheet, two alternate quizzes (A & B), and two CER tasks. Students analyze chemical properties, chemical vs physical changes, conservation of mass, and mixtures/separation techniques. Includes scaffolded and open CER versions with rubrics, checklists, and answer keys. What’s Included Lesson Slides: 22 slides (PPTX; editable) Student Worksheet/Assignment: Notes, Mixed Practice, DOCX and PDF Quizzes: