1.08 Intro to Chemistry WS

Relevant textbook pages: 15 – 17; 29 - 43 Section Objectives  Be able to explain the difference between chemical & physical changes, the types of mixtures, compounds elements & substances and identify the signs of a chemical reaction  Distinguish between hypothesis, theory, and law as scientific terms, recognize the usefulness and limitations of models and theories, the cumulative nature of scientific evidence, and understand sometimes theories need revision based on new information