What time is it?

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What time is it?

  1. 1.  Caused by the spin of the Earth on its axis  Spinning is also known as rotation  It takes about 24 hours for the Earth to make one rotation
  2. 2.  7 days for the…  7 non star visible objects in the sky (yes the Sun is a star, but the ancients did now know that)  Some of the days make sense in English, but Tuesday-Friday are named after the Norse form of the planet instead of the Latin/Roman form Day Object Sunday Sun Monday Moon Tuesday Mars Wednesday Mercury Thursday Jupiter Friday Venus Saturday Saturday
  3. 3.  Month sounds like moon!The word month does come from the word moon.  A lunar month is about 28 days. It takes the moon about 27.5 days to revolve around the Earth but because the Earth is also moving, it looks like 29.5 days.To make our calendar more equal, we have 30-31 days in most months.
  4. 4.  Years are based on how long it takes the Earth to make one complete orbit (revolution) around the sun  It takes the Earth 365.2422 days to orbit the sun  Because of that, we have leap year every four years  On years that end in a 00, it must also be divisible by 400 to be a leap year (1900 was not a leap year but 2000 was).

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