The Eyes

The Eyes exercise

• What do the parts around the eye do?

  Hints

  The eyelid protects the eye from things that try to enter it, or from too much light.

  The eye socket is like a sturdy and strong house for our eyes.

  Solution

  The correct answers are:

  • The eyelashes protect the eye from wind and dust.

  • The eyebrow keeps sweat and dirt from the forehead out of the eye.

  • The eye socket is where the eye sits so that it's better protected.

  • The eyelid protects the eye from things that try to enter it.

• What are the functions of the different parts of the eye?

  Hints

  When you look at someone's eye, the black part you see is the pupil.

  Behind the pupil is the lens, which focuses the light into a beam.

  Solution

  The correct answers are:

  • The iris can have many colours and shades like brown, blue and green.
  • The pupil is an opening in the centre of the iris.
  • Behind the pupil is the lens, which focuses the light into a beam.
  • Our retina passes the image to the optic nerve.
  • The optic nerve carries the image to the brain.

• What happens to the light when it enters the eye?

  Hints

  The pupil is an opening in the centre of the iris.

  That's where the light shines through, which later becomes the image you see.

  When it's dark, it's hard to see. So, the pupil expands and gets bigger to let in as much light as possible to the eye.

  Behind the pupil is the lens, which focuses the light into a beam.

  This creates a clear image, just like a projector, that focuses light on a screen or retina.

  Our retina passes the image to the optic nerve, which carries the image to the brain.

  Solution

  This is the correct order of the sentences:

  • First, the pupil lets light enter through the eye.
  • Next, the light goes through a lens that focuses the light to make a clear image.
  • Then, a clear image goes to the back of the eye, called the retina.
  • After that, the retina passes the image to the optic nerve, which carries the image to the brain like a cable, so that you can see the image instantly.

  Our eyes work together with our brain to help us enjoy beautiful colours and funny shapes in the world around us!

• What have you learned about the eyes?

  Hints

  Behind the pupil is the lens, which focuses light to make a clear image, like a projector on a screen or retina.

  The retina passes the image to the optic nerve, which carries the image to the brain like a cable.

  The pupil gets big in the dark to let in more light for seeing.

  Solution

  The correct answers are:

  • The eye is a special organ that helps us to see the world around us.

  • The pupil is the dark part in the centre of the eye that lets light in.

  • The light passes through a lens, which makes a clear image.

  • This image goes to the back of the eye called the retina.

  • The retina sends the image to the brain through the optic nerve, so we can see instantly.

  • When it's dark, your pupil gets big to let in more light, helping you see better in low light.

  • But if a bright screen suddenly appears, like on a phone or a computer, it can be too dazzling for your eyes because your pupil is still wide open.

  • To make it more comfortable, you can make the screen darker and have some light in the room.

  • This helps your pupil adjust to the changing light.

• What are these parts of the eye?

  Hints

  Behind the pupil is the lens, which focuses the light into a beam.

  The retina passes the image to the optic nerve, which carries the image to the brain like a cable.

  Solution

  Behind the pupil is the lens, which focuses the light into a beam.

  This creates a clear image, just like a projector, that focuses light on a screen or retina.

  Our retina passes the image to the optic nerve, which carries the image to the brain.

• What have you learned about the eyes?

  Hints

  The pupil lets light in.

  The retina sends the image to the brain.

  The lens works like a projector to make a clear image.

  Solution

  The correct answers are:

  • What is the part of the eye that lets light in? The pupil.

  • What part of the eye sends the image to the brain? The retina.

  • What happens to the pupil in bright light? It becomes smaller.

  • What is the part of the eye that works like a projector to make a clear image? The lens.

  • What can you do to take care of your eyes when using devices? Take frequent breaks.

  • What happens to the pupil in dark light? It becomes bigger.