Discover the world of composting in a bottle! Hands-on, eyes-on, mouths-on, and minds-on: Out of the trash and into the classroom this power point presentation is for beginning composting. Like many awesome things in life, the inspiration for such bottle creations came from a professor of plant biology named Paul Williams. He wanted to know what was going on in the middle of a pile of leaves so he scooped some up and put them in an empty pop bottle. The result: A Decomposition Bottle.