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I leaned that light travel fast but when it goes into glass it is slow.

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light can bend when it hits something like water.
light can act like a wave
it is called refraction.

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ithe light video was about a lot of refraction

thesecond one was about the sun and how much light it can give.

The third one was about rainbows   and colours

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Light can act like a wave some times.
Stars that we see have to travel thousands of years before it reaches us.
Light can travel 300 million meters in one second.
When light goes from a material to another, it bends or refracts.
It bends because light goes through diffrent materials in different speeds.
Light can travel much quicker going through air than it can through glass.

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When white light passes through a prism, the prism splits up the white light into different colorful light. You can never get to the end of a rainbow because a rainbow is sunlight coming from behind you, bouncing off of water in the air in front of you. A rainbow is really just an optical effect, not an actual object.

The electromagnet spectrum is the name for a bunch of types of radiation including visible light. like all waves, light waves have a wavelength. Some of the electromagnet waves are radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays.

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i wonder how fast light travels...WOW light travels 30 MILLION miles per SECOND!!!Cool!Laser stands for light amplification by stimulated emissions of radiation!

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I watched the rainbow video... I thought rainbows came from unicorn magic... Rainbows actually come from light refracting of of microscopic rain droplets.

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different colours of light have different angles of refraction.

the electromagnetic spectrum is the name for a bunch of types of radiation including visible light.

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Light
I wonder what the deal with refraction is?

Rainbows
Whay are there so many songs about rainbows?

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ilearnd that partecles are one way of making light                    I learnd that soler enarge is a good sours to make light           energypoten and kenet potentiol enagy means that when lightcomes dowen it has kenetic energy so potetionl energy is at the top at some thing  kenetic energy is going dowen

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refraction is were light slows down and bends through an object
lasers are eletrical pulses bounsing back and forth in side a tube.
the suns core burns at 40,000,000,000.c.

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The movie was about light itself and some of lights features like how fast light can travel and that light some times comes out in waves and some times particles. The movie also shows how we see  the light bounces of your eyes and you can see everything around you.

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Rainbows use refraction to show the different colors because all the colors in the rainbow make white if you mix theme together but if you you shine it through  triangular prism the color will bend so you can see the different colors. A rain drop is like a triangular prism.

The sun is mad up of hydrogen and helium.

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Light:
Animals can produce light through chemical reactions. One of the animals that can  is anglerfish.

Light can travel 300 million meters per second.

Rainbow:
When you mix red, orange,yellow,green,blue,indigo and violet light you get white light.

Rainbows show up when sunlight bounces off of the water in the air.

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Rainbows: rain drops serve as prisims that reflect the white light turning it into a rainbow.
I wonder if whe efect would be the same if it was a stream of water not just drops?

electromagnetic spectrum:
there are 7 different types of electromagnetic spectrum they are radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays and gamma rays. radio waves are used for TV radio  and stars can also collect those signals. am uses low signals

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I learned about refraction and diffraction.
I learned more about refraction because I did not get it 100% with Mr Rea.
Now I am more confident.
So what i learned was that  light slows down if somewhere is more dense.
Also I learned that diffraction is when light spreads out for example if I yell something across the room bunch of sound waves come out of my mouth.
Second video: Telescopes!!!
I learned that we see things sometimes smaller that it is that is why we have telescopes. Telescopes capture and magnify light.

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laser
light
amplification by
stimulat
emission of
raidiation

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the word laser stands for light
amplification by
stimulated
emission of
radiation.
laser light comes from lasing medium. it can be a gass liguid solid or gass.when the attoms have absorbed the energy they have to relees the energy in the form of a photon.

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light
how do we see light and how does it bounce?
When light from a light source lets out its light, then the light bounces on an object then your eyes catch this reflected light which allows you to see.

How fast can light travel?
Light can travel 300 million meters in one second.
How does a mirror work?
If you hold up a mirror it bounces right back at you

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did you know that rainbows use refraction to show nearly all the diffrent colors because when you mix red, orange, yellow, green, blue, indigo and violet it makes white and when you shine it through a prism the colors will blend and you'll see all the colors.

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Light: it was interesting to find out about ??? and I didn't realise that ???. I also learned that ????????
SUN: I found it incredible that ???? and I liked learning about...

I can't wait to read all your interesting comments later!