A powerpoint presentation detailing food chains and webs, pyramids of number, biomass and energy, step-by-step guides of the carbon and nitrogen cycles that allow students to build up a picture of the processes and examination questions at the end. Suitable for all boards, but designed for WJEC.

Ecosystems and Energy Flow Click to Preview Click to Preview Resource

Powerpoint ###53,"Energy and the environment" - Powerpoint

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  2. WJEC Ecosystems & Energy Flow.ppt
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