This PowerPoint presentation explores soil! More specifically, the following concepts are discussed: importance of soil, humus, texture, soil sizes and types, permeability, and pH of soil. There are a total of 45 slides. Some of the slides contain information/notes, images, there are several relevant interactive links mixed throughout that go to great explanations/interactives online, as well as a few review questions or turn-and-talk slides with images to check for understanding.
If you're interested, I also have guided notetaking sheets that go with this presentation.
Please note: This PowerPoint is essentially images - you will not be able to edit individual text areas (because it was converted from flipchart to PDF to PPT). However, you can simply add text boxes over anything you wish to change, delete, edit, etc. Also, This was designed for 7th grade, but I think it can appropriately be used in 5th through 10th depending on your standards. I also used this over the course of three days.
I hope you find this helpful, and that it saves you time as you prepare to teach these concepts.