Explore solids, liquids, and gases, chemical and physical changes, and properties of matter with these NGSS science hands-on activities! This All About Matter unit includes vocabulary cards, posters, task cards, and interactive student science matter books for 2nd and 3rd grade students. You will be able to use this states, properties, and changes in matter unit to teach about matter and provide your students with the practice and review they need! Your students will learn about:three states of