Eyes
Travel
Travel II
Light
Color
100
Some people wear these to help them see faraway or close-up.
What are glasses?
100
This is how light travels.
What is straight line?
100
This is a material that light may travel through.
what is a medium?
100
This is a form of energy that is transferred into electrical energy in the eye?
What is light energy?
100
This causes light to spread out.
What is diffraction or a prism?
200
Light enters your eye through this.
What is the pupil?
200
This term means to bounce.
What is reflect?
200
The angle of incidence is equal to...
The angle of reflection
200
This is another term for light wave.
What is light ray?
200
This is a thick piece of glass that refracts light.
What is prism?
300
This part of your eye is curved and bends the light as it enters your eye.
What is the lens?
300
These type of objects reflect light the best.
What is shiny and smooth?
300
Space is a vacuum what does this mean?
It is empty and there are no particles in it.
300
This type of material allows NO light to pass through and forms a shadow behind it.
What is opaque?
300
When these three colors combine, we see WHITE light.
What are blue, red, and green?
400
What are the two types of lenses?
Diverging and converging
400
This is what happens when light hits liquids, such as water when it strikes glass?
What is refraction?
400
This object reflects sunlight and can be seen during day and night.
What is the moon?
400
This type of material lets MOST light pass through.
What is transparent?
400
This is why an apple looks red.
What is it is the only colored not absorbed.
500
The lens focuses the light on the __________ at the back of your eye.
What is the retina?
500
Scientists have determined this to be about 186,000 miles per second.
What is the speed of light?
500
Why can light travel through space?
Space is a vacuum and light is a type radiation that can travel through it.
500
This type of material allows SOME light rays to pass through.
What is translucent?
500
This colour of light refracts the least?
Red
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