Fascinating Facts about eyes! Optional ESL activity: speaking and listening.

ESL Task:  How much do you know about your eyes?  Try to answer the following questions before watching the video.  Try use a monolingual or photo dictionary to look up the vocabulary (the words in the tag section will help you decide what words you need to prepare and look them up in a dictionary)

Watch the video and correct your answers!  How much did you know aobut eyes?

ESL activity.  Speaking / Listening / for a gist / comprehension questions.

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1- What is a cataract?

2-Who has cataracts?

3-What is the effect of UV in sunlight on eyes?

4- What is pink skin?

5- What is a remnant of the nictitating membrane?

6- How many eyelids do we have?

7- What is pikachurin?  Why does it have this name?

8- Who perceives hues in shorter wavelengths?

9- Who distinguishes more shades in the centre of the colour spectrum?

10- When did the first bule-eyed person exist?

11- How often do we blink a minute?  How long does it last?

12- How much do we blink during a day?

13- Who was the first to wear corrective glasses?

14- What  lives on eyelashes?

15- What are optical debris?

16- What can happen to people over 40?