LIGHT

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. The eye has a roughly shape.
2. The outer coat of the eye is and
3. Splitting of light into its colours is known as of light.
4. is a natural phenomenon showing dispersion.
5. Behind the cornea, we flnd a dark muscular structure called
6. In the iris, there is a small opening called the
7. When we say that a person has green eyes, we refer actually to the colour of the
8. The lens focuses light on the back of the eye, on a layer called
9. The contains several nerve cells.
10. Sensations felt by the nerve cells are then transmitted to the braln through the