Answer — Exercise 3
CLIL 5·Wider World 1 - Student's Book
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.