8/27-8/28 Warm-ups: 1. What is Chemistry: The study of composition of matter and the changes it undergoes. 2. Define Matter: anything that has mass and takes up space. 8/31-9/1 Warm-ups: 1. Classify each as a solid, liquid or gas at room temperature a. Mercury-liquid, also Bromine d. carbon dioxide (CO2)-gas b. Iron-solid e. cooking oil-liquid c. Neon-gas f. steel-solid, mixture of metals is an alloy Note: gases on the periodic Table are the noble gases, hydrogen, nitrogen, oxygen, fluorine. Chlorine. Liquids are mercury and bromine and the rest of the elements are solid.