A set of 27 slides systematically shows how weathering, erosion, and deposition contribute to soil formation. Both chemical and mechanical weathering are described, as are resulting soil layers and properties. There is no longer any need...

Get an in-depth look into erosion and deposition with a 23-slide presentation that details how gravity, water, waves, wind, and glaciers cause changes to the Earth's surface. Each slide consists of detailed images equipped with labels,...

This unique presentation is a children's story written by a teacher. The last slide of the presentation tells you of the history behind the story, and how it is used to teach her own students the art of story writing.

Seven percent of Americans believe the moon landing was staged. The presentation covers manned space exploration from the beginning of the space race through the Gemini missions. The lesson is the 23rd in a set of 26.