![]() ![]() ![]() Melting occurs when a substance changes from a solid to a liquid. Freezing occurs when a substance changes from a liquid to a solid. Matter can change from one state to another when a substance is heated or cooled. A solution is a mixture of two or more substances that are evenly distributed. Solutions are formed when one substance dissolves in another. The three common states of matter on Earth are solid, liquid, and gas.Ī mixture is a combination of two or more substances. The law of conservation of mass states that mass is never created or destroyed. In a physical or chemical change, the total weight of the substances remains the same before and after the change occurs. During a chemical change, the chemical properties of a substance change, and a new substance is formed. Concepts Coveredĭuring a physical change, the physical properties of a substance change but the chemical properties are the same. Scroll down for a preview of this learning objective’s games and the concepts. Conservation of Mass learning objective - based on NGSS and state standards - delivers improved student engagement and academic performance in your classroom, as demonstrated by research. In this series of games, your students will learn that no matter what reaction or change in properties occurs, the total weight of the substances does not change. ![]()
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