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How an Eye Makes a Picture

Light comes from an object and enters the eye through the clear front. A lens inside the eye bends the light so it lands on the back wall as an upside-down picture.

In the picture

  1. Clear front dome: lets light into the eye.
  2. Curved lens: bends the light to focus it.
  3. Back wall: catches the focused light as an upside-down picture.

Examples

  • A camera lens focuses light onto a screen.
  • A magnifying glass can bend sunlight into a bright spot.

Quiz: How an Eye Makes a Picture (Age 8)

  1. Which part lets light into the eye?

    • The curved lens
    • The back wall
    • The clear front dome
  2. What does the lens do to the light?

    • It sends light back out of the eye
    • It stops light at the clear front
    • It bends the light to focus it
  3. What kind of picture does the lens make on the back wall?

    • A right-side-up picture
    • A picture with no light
    • An upside-down picture

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Science, Age 8