Thursday, March 3, 2011

Fionúir: WHAT IS LIGHT


WHAT IS LIGHT

From the minute we wake up in the morning and open our sleepy, little eyes to the time we go to our cosy beds at night we can see delightful light.

We all enjoy looking at things like sunsets, cute cats, huge houses, fantastic flats, massive mountains, funny friends, sweet shops, lovely flowers!


Massive mountains














Light is a type of energy that lets us see. Light waves do not need a medium to travel through. But sound waves do. It can travel through a vacuun. So good news for Star War fans!!

Picture of light waves










We can’t touch light! We can’t smell it!!
When we see light we see bright and white light but we are actually wrong it is a mixture of yellow, red, green etc …


Well, if you don’t believe me try out this experiment …

Make your own rainbow 

Do this experiment on a sunny day.

You will need the following items:

a bowl filled with water
a mirror which should fit into the bowl
a piece of white paper

Instructions 
Put the mirror into the bowl and place it on a
window sill.
Hold the paper above the dish and mirror.
The mirror has to face the Sun so the reflected light shines onto the paper.
Now you can see the different colours.

What colours can you see? Does it look like a rainbow?

I can see a rainbow … 

(Red, orange, yellow, green, blue, indigo and violet)
A rainbow
the colors that make up the sun's white light 










Thank you for reading my contribution.

Cheers  Fionúir



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