1. The greenhouse effect This PowerPoint presentation has been downloaded from www.onestopclil.com. Presentation written by John Clegg.www.onestopclil.com © Copyright Macmillan Publishers Ltd 2008. Animation licensed from The Science Museum.

2. Before you watch 1.Answer these questions: a)What do fossil fuels contain? b)What happens when we burn fossil fuels? c)What does a greenhouse gas do? d)What happens when more and more greenhouse gases go into the atmosphere? e)What happens when the Earth gets warmer?

3. Before you watch 2.Do exercise 1 on the worksheet: ask and answer questions with your partner. 3.Discuss the answers to the questions in exercise 1 with your partner/group. Did you guess the answers correctly?

4. Watch 4.Watch the animation and do exercise 2 on the worksheet: complete the gaps.

6. After you watch 5.Do exercise 3 on the worksheet: talk about the pictures using the prompts.

7. Presentation (for classes working in groups only) 6.Give an oral commentary on the animation.