San Antonio College Library

In this live-action program viewers will learn that Soil is the top most layer of earth, lying on top of a layer of bedrock. Soil is often black or dark brown to red, comprised of mixture of organic remains, clay and rock particles. Students will come to understand that all soil formation begins with the break down of rock or parent material over time by mechanical weathering such as frost or rain, or cycles of heating and cooling. They will discover...

Part 2 of the tool-kit for Visions of Earth contains more than eighty unique and accessible animations. Developed by the American Geosciences Institute, this program provides an essential and well-tested tool for teaching and learning about our planet. Produced by American Geosciences Institute.

Nitrogen and Carbon Cycles (2:36); Carbon Returns to the Atmosphere (3:47); The Carbon Cycle (3:18); The Nitrogen Cycle (5:03); Biogeochemical Cycles (2:11); Nitrogen and Carbon Cycles in Nature: Introduction (2:25); The Nitrogen Cycle (1:09); Nitrogen Fixation (3:54); The Carbon Cycle (3:18); Carbon Returns to the Atmosphere (3:48); Access to Summary (2:46); Credits: The Nitrogen and Carbon Cycles in Nature (2:15); Ninety-five percent of all living...

Everything solid in nature began as a mineral. We rely on rocks and minerals in our daily lives and most of the time don't even know it. Developing an understanding for how integral rocks and minerals are to our daily lives will help children form a greater appreciation for the building blocks of our world. By viewing the video and discussing the concepts presented, children will enhance their knowledge about rocks and minerals. General information...

Soil which is the surface layer of earth results from the degradation of rock and is filled with life. A billion organisms exist in one square meter of fertile soil. Small mammals, worms and insects tunnel in the soil and provide air circulation. Microorganisms such as algae, bacteria and fungi decompose organic matter making minerals available to the roots of plants. The soil is a true ecosystem and is easily destroyed by pollution.

The Water, Phosphor, and Sulphur Cycles in Nature (3:15); Sulphur Cycle (3:59); Phosphorous Cycle (2:35); Hydrological Process (3:34); Biogeochemical Cycles (2:39); Water, Phosphor, and Sulfur Cycles: Introduction (2:50); Water/Hydrological Cycle (3:36); Phosphor Cycle (2:35); Sulfur Cycle (3:59); Summary (3:26); Credits: The Water, Phosphor, and Sulphur Cycles in Nature (2:13); As the name suggests, "cycles" unite plants with animals and human beings....

Plants are all around us. They make our world more beautiful, provide food and medicine, and help us breathe. Understanding the relationship between seeds and plants will help children appreciate the interrelatedness of our environment. All living things depend on each other in one way or another, and the plant cycle is just one more continuous phenomenon in our world. By viewing the video and discussing the concepts presented, children will enhance...

Professor Trujillo demonstrates the properties of a turbidity current.

All systems on Earth end up working together in the end. Honestly, it's more heartwarming than the last day of summer camp. But sometimes people get in the way, like that kid who keeps hiccupping during the group meditation. Can the hiccups be cured? Can humans live in harmony with Earth systems? Let's talk about it. Topics include: Biogeochemical Cycles, The Carbon Cycle, and Systems-Thinking and Human Impact.

Explains the structure and importance of soil, as well as details which nutrients are found in soils.