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Where something is moving at close to light speed and changes from blue to red

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When light waves are stretched out and appear red

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When light waves are stretched out

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When light waves are stretched out, they appear red as they are moving away from us. When the light waves are squashed they appear blue, as they are moving towards us.

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Evidence for the Big Bang is that galaxies are moving away from us over time. We can tell this because the further away galaxies get, they become redder, and they have very slowly gotten rdder and redder. And this provides evidence for the idea that the universe started from something smaller than an atom.

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Red shift is where an object is moving away from us at the speed of light.

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When waves get stretched as they move away and compressed as they go towards you

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They provide evidence for the big BANG by...

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They provide evidence for the big BANG by...

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Red shift

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The galaxies in space appear red, people think this is because it is moving further away and therefore there must've been a starting point where everything stretched out from

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They used the red shift theory where they believe all galaxies emit light and when stretched further away is looks red and when closer it looks blue and when they saw that some galaxies started to look redder they estimated that the universe was expanding.

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Used red shift which show the universe is always expanding and galaxies are moving away from us so the galaxy must have been at one point at the beg

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The evidence for the big bang is that the galaxies are red so that means they are going further away which meant that one day they were all together

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When sound waves get squished the are a higher pitch and when they’d get strichend it is a lower pitch. That is why when so,etching goes past you at speed it sounds different when it is on the right and eh nicht it is on the left. When light is squished it looks blue amd when it’s isn’t streched it looks red.

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The Doppler affect is when the waves get squished when they come towards you and get stretched when they go away from you

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Red shift is long wavelengths  that are stretched out to appear red

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Red shift is long wavelengths  that are stretched out to appear red

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When something is moving near to the speed of light and when the light waves are stretched out it changes from blue to red.

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When something is moving near to the speed of light and when the light waves are stretched out it changes from blue to red.

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Ewan

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Evidence is that the universe was squashed to a point showing there’s was a beginning. The universe is still expanding and space is slowly stretching. There are red gal

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White light waves showing a different frequency because they're moving causing red shift

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Where something is far away so the light turns red

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Long wavelength

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Red shift is..

Where something is moving at close to light speed and changes from blue to red

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Is when light waves are stretched

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Red shift

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The Doppler affect is:  -Ella and Grace 

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The Doppler affect is:  -Ella and Grace 

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The Doppler effect is when

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When a sound or light wave is stretched

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Red shift' is a key concept for astronomers. The term can be understood literally - the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum. Something similar happens to sound waves when a source of sound moves relative to an observer.

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Red shift is when things move further away and appear red.

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Red shift is where light waves are stretched or shortened and change from blue to red.

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When light is stretched and gives a red affect

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I dont know

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Iswhenlightwavesarecompressedtheycomestowardsyouandtheylookblue. Whentheyaregoingawayfromyoutheylookred.

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Our whole universe was in a hot, dense state
Then nearly fourteen billion years ago expansion started, wait
The earth began to cool, the autotrophs began to drool
Neanderthals developed tools
We built a wall (we built the pyramids)
Math, science, history, unraveling the mysteries
That all started with the big bang! Hey!

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Nyeeeoomm

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Red shift
Stretched light wave length increases (blue to red)