Secondary Catalogue

Series: Environmental Systems


Biogeochemical Cycles

Biogeochemical Cycles

Our planet has four spheres – the lithosphere, biosphere, atmosphere, and hydrosphere. This clip provides an overview of vital biogeochemical cycles that occur across the four spheres, including the nitrogen, phosphorous, water, and carbon...Show More
Ecosystems: Energy and Matter

Ecosystems: Energy and Matter

Every organism lives in an ecosystem. This clip defines and looks at different types of ecosystems, and explores two critical processes that go on within them – energy flow and the cycling of matter. It is ideal for middle to upper level...Show More
Human Impact on Ecosystems

Human Impact on Ecosystems

Humans have caused massive changes to the natural balance of ecosystems around the globe. This clip examines some of the most dramatic and destructive ways in which people have impacted ecosystems – covering climate change, pollution,...Show More
Scientific Research, Technology and the Environment

Scientific Research, Technology and the Environment

While ecosystems face increasing pressure from human activity, science plays a critical role in controlling and minimising harmful effects. This clip explores the role of science and technology in identifying impacts on ecosystems and finding...Show More