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Subtopic: Cycles and Processes

Resource Grade Level Media Type
Ancient Farmers of the Amazon  

Ancient Farmers of the Amazon
This video segment from Evolution: "Evolutionary Arms Race" tells the story of the leafcutter ant and the fungus it farms -- an example of mutually beneficial symbiosis.

6-12 QuickTime Video
Carbon Cycle Diagram  

Carbon Cycle Diagram
This diagram from NASA's Earth Science Enterprise illustrates the Earth's carbon cycle .

9-12 JPEG Image
Contaminants in the Arctic Human Population  

Contaminants in the Arctic Human Population
In this video segment adapted from LOKE Films and the Arctic Monitoring and Assessment Programme, learn how human populations in the Arctic are affected by industrial contaminants in the food chain.

5-12 QuickTime Video
Coral Reef Connections  

Coral Reef Connections
Dive in and explore what makes this beautiful world so fragile. In this Evolution Web feature, discover how coevolution has shaped the ecological relationships among reef creatures.

3-12 Flash Interactive
Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi  

Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi
In this video segment adapted from NOVA, scientists search for carbonized remains of plants preserved in lava flows to find out how long it has taken rain forests on Hawaiʻi to regenerate after a volcanic eruption.

3-12 QuickTime Video
Deep Sea Vents and Life's Origins  

Deep Sea Vents and Life's Origins
Deep-sea vents are home to strange, luminescent life forms that thrive through chemosynthesis. This video segment from NOVA: "Volcanoes of the Deep" hypothesizes life's beginnings in this extreme environment.

3-12 QuickTime Video
Global Warming and The Greenhouse Effect  

Global Warming and The Greenhouse Effect
This video excerpt from Race to Save the Planet discusses the greenhouse effect and global warming.

6-12 QuickTime Video
How Did Life Emerge Here?  

How Did Life Emerge Here?
This video segment adapted from NOVA describes the emergence of life on the islands of Hawaiʻi from a barren volcanic platform under the ocean waves to the rich explosion of life that covers the many climate zones of the islands today.

3-12 QuickTime Video
Illuminating Photosynthesis  

Illuminating Photosynthesis
This interactive feature from the NOVA: "Methuselah Tree" Web site details the process of photosynthesis and its role in the oxygen/carbon dioxide cycle.

3-12 Flash Interactive
Intertidal Zone  

Intertidal Zone
This video segment from NOVA: "The Sea Behind the Dunes" explores the community of organisms that exists in the New England tidal marsh.

9-12 QuickTime Video
Life Before Oxygen  

Life Before Oxygen
This Interactive NOVA: "Earth" video segment looks at ancient organisms that lived anaerobically, the origins of photosynthesis, and the new forms of life this process made possible.

3-12 QuickTime Video
Life Cycle of a Seed Plant  

Life Cycle of a Seed Plant
In this interactive activity adapted from the University of Alberta, learn about each step in the life cycle of a seed plant.

6-12 Flash Interactive
The Nitrogen Cycle  

The Nitrogen Cycle
Nitrogen, one of the most abundant elements in the universe, is essential to life. This interactive activity adapted from the University of Alberta provides an overview of the nitrogen cycle.

9-12 Flash Interactive
Snapshot of US Energy Use  

Snapshot of US Energy Use
This video segment adapted from NOVA/FRONTLINE looks at American energy consumption and the resulting production of greenhouse gases.

3-12 QuickTime Video
Taking the Earth's Temperature  

Taking the Earth's Temperature
This video segment from FRONTLINE/NOVA: "What's Up with the Weather?" depicts research efforts to record Earth's past and present temperatures shifts.

9-12 QuickTime Video
The Value of Wetlands  

The Value of Wetlands
This video segment adapted from Texas Parks and Wildlife Department explores the role of the wetlands in our environment, including providing habitats for wildlife, acting as natural water filters, and playing a part in the greater water cycle.

4-10 QuickTime Video
Your Carbon Diet  

Your Carbon Diet
Find out how much energy you use and common sense ways to conserve. From the FRONTLINE/NOVA Web site "What's Up with the Weather?"

9-12 Shockwave Interactive