Tuesday, September 22, 2009

Ecosystems and Climate

Deserts and Tropical Rainforests all courtesy of the marvelous David Attenborough and the BBC Earth DVD boxed set, an essential resource of the OBS Geography department.
Homework this week is the Deforestation newspaper article and the associated questions, some parts might be quite tricky but are easily handled if you have your text book opened to pages 236-7 and the destruction of the Amazon ecosystem, powerful stuff.
If you have forgotten anything or were absent from the lesson this game based on the Da Vinci Code should help you on your way.

http://www.daversitycode.com

Some work on how we can get cold as well as hot deserts is important in order to understand this vital ecosystem and then after watching the deserts episode of Planet Earth we shall be looking at area of the world that are suffering from desertification and drought.
Mrs Craig has encouraged my interest in the current Australian drought and pages 256-8 in your textbook has an excellent case study on the Sahel region of Africa for desertification and Drought.