Curated OER
Chapter One: The Importance of Soil
The grammar is problematic on several of the slides in this collection, but the information is generally accurate. If you don't mind making a some corrections rather than starting from scratch, this presentation will save you some...
Curated OER
Sunken Millions
This PowerPoint provides a game show format with multiple choice questions about fresh and salt water. Topics include sources of water, water geography, uses of water, and the water cycle.
Curated OER
Terrestrial Ecosystem Response to Climate Change
An extensive investigation of the Earth's climate changes awaits your environmental science classes. This top-notch presentation begins by looking at the history of Earth's climate and then predicts the impact on each major terrestrial...