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U3L6 Science
| Question | Answer |
|---|---|
| Eyes convert what to let us see | The part of the electromagnetic spectrum that humans can see |
| How can you see light | It enters through our pupil,then to the lenses at the front of our eyes. It then travels through the vitreous fluid and then hits our retina, and then is transmitted to the vision centres of the brain |
| the function of the iris | It controls the size of the pupil allowing more light to enter |
| the function of the lens in an eye | They refract light then bend the light so then it hits the retina |
| Which structure is responsible for colour vision | Cones |
| Laser eye surgery involves using precise lasers to | Reshape the cornea |
| Which structure is responsible for black and white vision | Rods |
| The thin layer at the front of the eye is called | The cornea |
| The hole in an eye that allows light to enter is called | The pupil |
| What detects light that enters your eye | The retina |
| When the retina is stimulated how does it send messages to the brain | By getting the optic nerve to pass messages to the brain |
| What happens when a pupil dilates | It grows larger allowing more light to enter the eye |
| What is the function of the ciliary muscles | They relax and contract to shorten and lengthen the lens, respectively |
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