Powerpoint presentation that is comparable to Glenco Chemistry Matter and Change chapter three. Powerpoint includes a link to a simulation created by Cary Huang about the scale of the universe. The 'Find My Rule" slides are taken from a Kagan structure reproducible worksheet found in "Structures for Success in Chemistry, High School Activities" distributed by Kagan. Slides include matter, physical and chemical changes, mixtures, elements, compounds percent composition and conservation of mass. There are also some activity slides for MSDS sheets. MSDS sheets are not included (I usually use the flinn MSDS sheets).