Book 2, Question 59 · Video
Why Do We Blink?
Blinking is like a tiny windshield wiper for your eyes. Each blink spreads tears across the surface and sweeps away dust. That keeps your eyes wet, clean, and clear.
Read the full answer →What Crafty Clover says in this video
Intro
Hey there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do we blink?
The Big Idea
Blinking is like a tiny windshield wiper for your eyes. Each blink spreads tears across the surface and sweeps away dust. That keeps your eyes wet, clean, and clear. It is a tiny habit that protects your eyes all day long.
Eyes Get Dry or Dusty
Step one: your eyes get dry or dusty. Air and tiny specks can land on the front of your eye. Your eye senses that it needs a cleaning. Blinking also lets your eyes rest.
Lids Close Fast
Step two: your lids close fast. Your eyelids sweep down in a flash, often in about a tenth of a second. It happens so fast that you hardly notice. Your eyes stay healthy when they stay moist.
Tears Spread
Step three: tears spread. Each blink spreads a thin layer of tears over your eye. The tears wash away dust and keep the surface smooth. Every blink is like a mini cleaning cycle.
A Closer Look
Let's take a closer look at why the world stays clear. The eyelid works like a wiper. The tears work like a wash, and they keep your eye healthy. Together, they give you a clear view. It is a teamwork job for the lid and the tears.
Quick Facts
Quick facts! Most blinks are faster than you notice. People blink about 15 to 20 times every minute. We blink less when we stare at screens. So take screen breaks and blink often! Your eyes are very well designed.
Think Like a Scientist
Now, think like a scientist! Ask a friend to help. Have your friend count your blinks while you read. Then switch places. Did you blink more or less than you thought?
Outro
Blink, blink, your eyes are taking care of themselves! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!