This bundle includes four products introducing students to chemistry. PowerPoint Presentation - This presentation focuses on the following concepts: matter, atoms, protons, neutrons, electrons, elements, molecules, compounds, heterogeneous and homogeneous mixtures, and solutions. There are a total of 66-slides. Slides contain information for guided notes with images, links to BrainPOP videos, and several review questions throughout for checking understanding. Please note: This was originally cr