Bozeman Science
LS2B - Cycles of Matter and Energy Transfer
In this video Paul Andersen explains how matter moves from the environment into living organisms and back into the environment. Food webs are used to show how matter and energy move through organisms. Ecological pyramids show that matter...
Red Rock Films
Ecosystem Activator: Streams and Rivers. Age 7 - 10.
Highlighting the life and movement of freshwater rivers and streams. Animals and their aquatic interactions with the ecosystem. Why streams and rivers are important and should be protected.
Visual Learning Systems
Exploring Grassland Biomes: Grasslands Around the World
Upon viewing the Exploring Grassland Biomes video series, students will be able to do the following: Describe some of the basic characteristics of grasslands: - grasslands receive 25 to 75 centimeters of rain a year - grazing by large...
Red Rock Films
Ecosystem Activator: Streams and Rivers. Age 10 - 14.
Highlighting the life and movement of freshwater rivers and streams. Animals and their aquatic interactions with the ecosystem. Why streams and rivers are important and should be protected.