- 1. Something that gives us light is called a...?
A) Bulb
B) Reflector
C) Magnifier
D) Source
- 2. You can see clearly through .... materials.
A) Lens
B) Translucent
C) Transparent
D) Opaque
- 3. Light can travel through ....materials but you can't see clearly through them.
A) Transparent
B) Opaque
C) Translucent
- 4. You can't see through .... materials at all.
A) Translucent
B) Transparent
C) Opaque
- 5. Which of these is not a source of light?
A) Moon
B) Fire
C) Candle
D) Torch
E) Sun
- 6. Mirrors, glass, cats' eyes are all examples of...
A) Metals
B) Sources
C) Refractors
D) Reflectors
- 7. What properties make something a good reflector?
A) Smooth and shiny
B) Hard and strong
C) Transparent and clear
D) Rough and dull
- 8. What do we need to see?
A) Eyes
B) Light and eyes
C) Light
D) Sunlight
- 9. What part of the eye controls the amount of light entering the eye?
A) Pupil
B) Iris
C) Lens
D) Eyelid
- 10. Which part of the eye gives us out eye colour?
A) Retina
B) Iris
C) Pupil
D) Eyelid
- 11. What is the back part part of the eye, that contains light sensitive cells, called?
A) Iris
B) Retina
C) Lens
D) Optic nerve
- 12. Which do we call the black part at the centre of the eye?
A) Pupil
B) Eyelid
C) Retina
D) Iris
- 13. What part of the eye protects it and keeps it clean?
A) Retina
B) Pupil
C) Eyelid
D) Iris
- 14. What part of the eye focuses light onto the back of the eye?
A) Lens
B) Pupil
C) Retina
D) Iris
- 15. What part of the eye collects messages and brings them to the brain?
A) Optic nerve
B) Ophthalmic nerve
C) Sciatic
D) Aural nerve
- 16. During the disappearing coin activity, you could see the coin at the end because the water..... the light.
A) Wet
B) Magnified
C) Reflected
D) Refracted
A) in curved lines
B) in straight lines
C) very slowly
D) very brightly
- 18. Light is a source of .....
A) energy
B) light
C) power
D) heat
- 19. A rainbow is a good example of the .... of light
A) colouring
B) differences
C) splitting
D) mixing
- 20. Which of these is not a colour in the rainbow?
A) Pink
B) Blue
C) Orange
D) Green
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