Are you looking for a resource that will explain the chemical and physical changes of matter in a simple way?This resource was made to address the NGSS 2-PS1-3. This deals with reversible and irreversible changes of matter. While this is a second-grade standard, it is appropriate for any grade addressing physical and chemical changes in matter. There are posters defining the terms as well as examples. Picture cards showing changes are included. The students must decide what type of change is