Large file - Complete lesson on Chemistry including how the atom was discovered, periodic table, metals and non metals - used for 8th grade. Textbook is Prentice Hall Physical Science. There are 4 SMARTboard presentations to cover sections 4.1 through 4.4. Homework assignments included along with some modified homeworks titled Version 2. Notes packets for students to take notes that go along with the SMARTboard presentations. All in Microsoft word so you can edit as needed. There are also a couple videos included as well as embedded links to other videos through you tube.