Unit Award Scheme

shown knowledge of

1. the temperature of the Earth being a balance between the energy it gets from the sun and the energy it radiates back out into space

2. what the 'greenhouse effect' is

3. at least three examples of different greenhouse gases in the atmosphere, including water vapour, carbon dioxide and methane

4. at least three ways that humans are contributing to the greenhouse effect, eg use of aerosols, CFCs (chlorofluorocarbons)

5. what 'global warming' is

6. at least two ways carbon dioxide is being released into the atmosphere by human activity

7. at least two human activities that affect the level of carbon dioxide in the atmosphere, eg cutting down large areas of forest for timber.