UNIT E – PROPERTIES OF MATTER AND ENERGY SOL 5.4 The student will investigate and understand that matter is anything that has mass; takes up space and occurs as a solid, liquid, or gas. Key concepts include atoms, molecules, elements, and compounds mixtures and solutions; and effect of temperature on the states of matter. Chapter 10 – Properties and Structure of Matter Lesson 1 – Physical Properties What Is Matter? Matter – anything that has mass and takes up space Mass – the amount of material in an object (measured with a balance) Volume – the amount of space taken up by an object. Weight Weight – has to do with gravity (different from mass) What Is Density? Density – how tightly packed matter is Remember our class demonstration with the 9 floor tiles! How Dense Are Solids, Liquids, and Gases? List the states of matter beginning with the one that has the greatest density: 1. 2. 3. Solid Liquid Gases (molecules aligned like soldiers) (little loose) (ready for a party)