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Download Skymap
Can you find…

•The Sun?

•The moon?

•The international space station?

•The Webb space telescope?

•Jupiter?

•The polar star?

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Sky Map convierte tu dispositivo Android en una ventana en el cielo nocturno.

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Three ideas
Two questions
One metaphore

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Light waves are electromagnetic waves, and, as waves, are subject to the Doppler effect.

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It is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.

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And two more:
Doppler effect using car horn https://www.youtube.com/watch?v=a3RfULw7aAY
Full explanation:

https://www.youtube.com/watch?v=h4OnBYrbCjY&vl=es

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Brass band on train demonstrates Doppler effect

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A spectroscope can detect the different wavelengths or frequencies of a radiomagnetic emision by dispersing the radiation wave.  

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Use your spectroscope to answer the questions.

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Red shift is the first piece of evidence

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Copy in your notebook

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If there was such an explosion, where has all that energy go? Could we still hear it?

Watch the video and copy:
Astronomers have discovered a cosmic microwave background radiation (CMBR) comming from all directions in space  with a temperature of about -270ºC. The CMBR is the remains of the energy  from the Big Bang, spread thinly across the whole Universe.

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Exploring the Dark Universe: Cosmic Microwave Background

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Click the link to hear the Big Bang's echo.
https://www.youtube.com/watch?v=cPalHdzsImc
(You don't need to watch the whole video, only the initial sound)

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To know more

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Origins of the Universe 101 | National Geographic

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Explain to your partner.

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If you are in doubt, check your notes or the internet.

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Finish now the worksheet