Make teaching Biology easy with the Biology Unit 1.2: The Chemistry of Life Bundle! This is the second unit in the Best for Teachers Biology Unit Plan Series. Topics covered include: atoms, bonding, chemical reactions, enzymes, pH, acids, bases, elements, proteins, lipids, carbohydrates, nucleic acids, and ATP. You can see a complete list of objectives below. This bundle includes: Biology Unit Plan 1.2 (SIOP and Differentiated) The Chemistry of LIfe (Updated)Biology PowerPoint 1.2 The Chemi