Students observe teacherled demonstrations, and build and evaluate simple models to understand the greenhouse effect, the role of increased greenhouse gas concentration in global warming, and the implications of global warming for engineers, themselves and the Earth In an associated literacy activOff the surface is absorbed and reradiated into the atmosphere, where much of it is absorbed by the greenhouse gases This is known as the greenhouse effect BACKGROUND Use the following terms to label the diagram belowThe greenhouse effect is a natural phenomenon, but the extra gases produced by human activity are making it stronger We are now adding to these gases faster than oceans and plants can absorb them — the greenhouse effect is being 'enhanced' by humans There is strong evidence that recent changes are unprecedented and not due to natural
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