The key answer of exercise 3
The key to exercise solutions in chapter CLIL 5 for the textbook Wider World 1 - Student's Book with authors Bob Hastings and Stuart McKinlay from Pearson Education
Question
Read the article again. Answer the questions.
Answer
- a sheep, a duck and a chicken
- 21 November 1783
- because hot air is lighter and less dense than cold air
- to carry passengers / because wicker is strong and light
- The pilot opens the valve at the top of the balloon. Some hot air leaves the balloon and it goes down.
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