1. Science
Light and Eye 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

2. 1. Draw a normal and complete the direction of the beam of light?
answer

3. Upside down AND back to front
2. How would the tree’s image appear on the back of your eyeball (retina)?
answer
Upside down AND back to front

4. Label the parts of the eye.
answer A B
A Cornea
B Retina
C Optic Nerve
D Lens C D

5. Label A and B
answer
_____A___
A Pupil
B Iris
______B__

6. 5. Name the two types of lens.
answer
Concave lens Convex lens

7. 6. Two common eye defects are..
answer
Short sighted and long sighted

8. 7. Is this person long sighted or short sighted?
answer
S Casey Int1 Biology

9. 8. Is this person long sighted or short sighted?
answer

10. 9. What type of lens can correct long sight?
answer
Focuses behind the retina
A convex lens bends the rays of light so that they focus on the retina

11. What type of lens can correct short sight?
answer
Light focuses in front of the retina
A concave lens bends the rays of light so that they focus on the retina

12. 11. What is the proper name for a rainbow?
answer
Visible spectrum

13. 12. Which colour is refracted (bent) the most going through a prism?
answer
Violet

14. 13. What section of the electromagnetic spectrum is used to detect broken bones?
answer
X Rays

15. 14. What detector is required to pick up radio and TV waves?
answer
An aeriel.

16. What section of the electromagnetic spectrum do we detect as heat radiation?
answer
Infra-red.

17. 16. What colour do you get if you mix red light and green light ?
answer
Yellow

18. 17. What are the 3 primary colours of light?
answer
Red , Green and Blue

19. What is beyond violet on the electromagnetic spectrum
answer
Ultraviolet

20. List the visible spectrum
Red
Orange
Yellow
Green
Blue
Indigo
Violet
answer

21. 20. What does a convex lens do to beams of light?
answer
Makes them converge (meet at a point)

22. 21. Name point X?
answer X
Focal point

23. 22. What happens to the focal point if a thicker lens is used?
answer
Focal point
The focal point is closer to the lens

24. 23. What does a convex lens do to beams of light?
answer
Makes them diverge
(go further apart)