Study Guide Chapter 4 Elements, Compounds and Mixtures- Test Wednesday December 3, 2014 Make sure you know the following: What an element is What are the 3 categories of elements? What a mixture is What is a compound? What is a pure substance? How to tell the difference between an element, mixture and a compound Both homogeneous and heterogeneous mixtures what do they mean and examples of each What a suspension is What a solution is What a solvent is What a solute is What a colloid is Examples of each How to tell the difference between a suspension, a solution and a colloid: in terms of particle size, filtering and scattering of light. Separation techniques for mixtures: filtration, distillation, centrifuge, Separation techniques for compounds: chemical reactions and electrolysis What are metals, metalloids and non-metals and their properties? Physical and chemical properties of elements How can the rate at which a substance dissolves be increased? Reread Chapter 4, study your notes, review pods, homework and classwork worksheets, try to answer the review questions from the book and go over all the section reviews. Utilize the online text book resources.