9. Inventions That Help People Measure Time

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Across
  1. 3. Small time unit
  2. 4. Wakes you up
  3. 5. Shows the time
  4. 8. Counts down
  5. 10. Uses sun shadow
Down
  1. 1. Signals time
  2. 2. Uses sand
  3. 6. Shows days
  4. 7. Wrist timepiece
  5. 9. Time measure