This PowerPoint discusses the basics of Photosynthesis and is an excellent introductory presentation for a high school program. The presentation is divided into three sections: 1.) Energy and Life, 2.) Photosynthesis: An Overview, and 3.) The Process of Photosynthesis. Energy and Life includes the discussion of autotrophs, heterotrophs and ATP. Section 2, provides an overview of photosynthesis, including a discussion of the pigments and wavelengths of light and the structure of the chloroplast. Electron carriers and the photosynthesis equation are also included. Lastly, section 3, discusses the details of the light-dependent and the light independent reactions. This PowerPoint can be used as an excellent review for any end-of-course assessment as well.