I WONDER - How Many Times Do We Blink In One Day?

I WONDER - How Many Times Do We Blink In One Day?

Assessment

Interactive Video

Other

KG - 6th Grade

Hard

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Blinking is a frequent and often unnoticed action, occurring over 10,000 times a day. Our eyelids function like windscreen wipers, spreading fluid to keep our eyes moist and free from bacteria and dust. Blinking is a rapid process, taking only 2/5 of a second.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

In what way are eyelids similar to windscreen wipers?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How fast do our eyes blink?

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OFF