Matching Pairs LET'S REMEMBER THESE FACTS!Online version Join the sentences! by Alfonso López 1 When matter changes into different matter, it is called a 2 There are three states of matter: 3 We use different materials 4 A mixture is something that contains 5 Everything on the planet 6 When matter changes shape, size or state, it is called a chemical change. two or more materials. solid, liquid and gas. is made up of matter. physical change. to make things.