This bundle includes three items: a lecture on atoms and bonds with blanks for students to fill in, the same lecture with no blanks, and an outline of these notes. These files are in PDF and are therefore not editable, but the editable versions can be purchased for full price in my store. PDF files can be presented in "Preview" or "Adobe Reader" the same as in in PPT. I find providing students the notes with blanks allows them to listen more closely instead of copying every word. The presentation includes a bellwork/do now question and assessment questions at the end of the presentation.