light
No one can see anything in a completely darkned room. There has to be
Light before you can see. You see when light enters you eye. And so you have to know something about light to understand how the eyes work.

What is light?
Light is a kind of energy .it’s a type of radiation. Light energy is given off by the sun, by candles, and other light sources.
Light energy travels from one place to another. The light travels in straight lines (you can see that from the pictures of the sun) it’s often useful to think of the light travelling through the air at 300.000 km each second.






Shadows and reflexions:
Because light travels in straight lines, shadows form.

What’s a shadow?
Is an area behind an object where no light from a light source reaches.
When the sun shines on a object like a tree, the sun’s rays cannot bend round corners to reach the area behind it. That’s why that
The area behind it. That’s why the area behind the tree is dark, and that’s what make
The shadous.
Light rays can be bounced off or reflected of and object. You see this board because rays of light are being reflected from it in to your eye shiny surface, like mirrors reflect light you can see how a mirror reflect to the rays.
Class work:
-investigate
1. What is a light source? Give some examples
2. Write two facts about light rays.
A. a shadow
B. reflecting light?
4. Why does a shadow form behind you when the sun shines?
5. Mirrors and polished cars reflect light well. Walls don’t why not?
6. Try to find out: does the moon give off light or reflect it?
Development
1) Lantern, phosphors, lamp bulb landle.
2) A) That your rays to direct.
b) To produce shadow.
3) Shadow. Is where not reflect the the light,
-reflecting light. Produce shadow.
4) Because the light no reflec my.
straigh line

5)Because the mirrors have shiny.

6)NO, the moon is a satellite it does not possess their own light, the light of the moon we see q is the reflection of sunlight on its surface, so depending on where we see that sometimes the full, half rising etc, and that happens light when it is blocked from the sun ...