History of Time Measurement

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Across
  1. 2. The Babylonians got the number 60 from the ______.
  2. 4. The ______(counting in 60’s) system.
  3. 6. The ______ cycle keeps track of the excessive time periods of light and dark as the earth.
  4. 8. The ______ cycle is defined by the Earths seasons
  5. 9. The ______ was used to indicate time length to track the hours during the day
Down
  1. 1. Today we use the _______ calendar.
  2. 3. The_______ was used to track the time length to track the hours of the night
  3. 5. The _______ created a calendar of 12 months of 30 days with approximately 5 days for the solar year.
  4. 7. The ______cycle keeps track of the phases of the moon.