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Free Presentations in PowerPoint format

The Water Cycle (pppst)

The Carbon Cycle  

Ecosystems and the Biosphere

Learning Progressions in the Carbon Cycle (for teachers) 

Carbon Cycle (for teachers) 

Ecosystems

Ecosystems of South America 

See Also: Water Cycle, Environment, Ecology


For Kids

Kids Crossing - Living in the Greenhouse

A Trip Around the Carbon Cycle

The Carbon Cycle Game

Introduction to the Carbon Cycle (HS)

The Nitrogen Cycle

Gas Cycles - Carbon, Nitrogen, Oxygen

Exploring EcoSystems


For Teachers

Understanding the Global Carbon Cycle (resource)

Ecosystems UNIT (6th-grade)

Free Clipart for Science

Free Templates

 




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