This PDF puzzle contains a master, pieces and answer key of the three stages of matter. After reading from your text book, students will add the graphic that represents the particles inside a solid, liquid and gas. They will also cut out and place which temperature point goes between the stages (ie. freezing point, boiling point, etc) Finally the students add the pieces to the bottom of the puzzle that give the details about a solid, liquid and gas. It is a great visual that shows the three stages and how matter goes from one stage to the other.