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Video zone: Can I power a flashlight without batteries?learnenglishteens.britishcouncil.org/.../can_i_power_a_flashlight... · The flashlight is hollow so that it can generate electricity

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Page 1: Video zone: Can I power a flashlight without batteries?learnenglishteens.britishcouncil.org/.../can_i_power_a_flashlight... · The flashlight is hollow so that it can generate electricity

Video zone: Can I power a flashlight without batteries? – exercises

At just 16 years old, Ann designed a flashlight which doesn’t need batteries. How did she create her

invention?

Do the preparation task first. Then watch the video and do the exercises. Remember you can read the

transcript at any time.

Preparation

Match the vocabulary with the correct definition and write a–h next to the numbers 1–8.

1…….. a grade a. a small, electric light which you can carry in your hand (British

English: a torch)

2…….. a flashlight b. a person who is obsessed with science or maths and who is

usually very intelligent

3…….. a nerd c. to be open to the possibility of doing something (opposite: to

refuse to do something)

4…….. to run on something d. a number or letter that shows a student’s result in a test

(American English)

5…….. to be willing e. to function, using something as energy

6…….. to flow f. a small square or rectangle, made of a material like ceramics,

clay or stone

7…….. a tile g. empty inside (e.g. a pipe or a tube)

8…….. hollow h. to move in a continuous, smooth way (often referring to the

movement of a liquid or a gas)

1. Check your understanding: reordering

Write a number (1–5) to put these topics in the order that Ann mentions them.

…………. How Ann first became interested in science

…………. Ann’s inspiration for her flashlight invention

…………. The number of people without electricity in the world

…………. How the flashlight works

…………. An incorrect stereotype about young scientists

Page 2: Video zone: Can I power a flashlight without batteries?learnenglishteens.britishcouncil.org/.../can_i_power_a_flashlight... · The flashlight is hollow so that it can generate electricity

Video zone: Can I power a flashlight without batteries? – exercises

2. Check your understanding: multiple choice

Circle the best answer to complete these sentences.

1. Ann says that people often expect her to be extremely ...

a. curious. b. talkative. c. intelligent.

2. Ann is fascinated by insects because they are tiny but ...

a. strong. b. complex. c. beautiful.

3. She says that if we want to help the environment, we need to ...

a. recycle. b. study science. c. change.

4. Ann’s friend in the Philippines had no electricity so she had bad ...

a. health. b. exam results. c. quality of life.

5. The flashlight is hollow so that it can generate electricity between your warm hand and the cold ...

a. air. b. plastic. c. LED light.

6. Ann says that the number of people in the world without electricity is ...

a. 1.4 million. b. 1.4 billion. c. over 4 billion.

Discussion

Do you think it’s a good invention? Do you have any other ideas for useful inventions?