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Water Clock
•Objectives
1. To make learners understand
functioning of water clock
Water Clock
Grade 5– Spring 2020
The City School
Raffia
Lecture –Water Clock
Jun-10-20
The Water Clock or
Clepsydra
What are
they?
The waterclocks or clepsydras
are a type of mechanism for
measuring time by the regulated
flow of liquid to or from a
graduated container.
Water Clock
How were
they?
• The first water clocks consisted
of a ceramic vessel containing
water to a certain level, with a
hole at the base of an adequate
size to ensure the liquid outlet at
a given speed and, therefore, in a
predetermined time.
How did they
work?
• The container available within
several brands so that the water
level indicating the different
periods, day and night.
homework
• What are candle clocks and how they
measured time?

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Water clock

  • 1. Water Clock •Objectives 1. To make learners understand functioning of water clock Water Clock Grade 5– Spring 2020 The City School Raffia Lecture –Water Clock Jun-10-20
  • 2. The Water Clock or Clepsydra
  • 3. What are they? The waterclocks or clepsydras are a type of mechanism for measuring time by the regulated flow of liquid to or from a graduated container.
  • 5. How were they? • The first water clocks consisted of a ceramic vessel containing water to a certain level, with a hole at the base of an adequate size to ensure the liquid outlet at a given speed and, therefore, in a predetermined time.
  • 6. How did they work? • The container available within several brands so that the water level indicating the different periods, day and night.
  • 7.
  • 8. homework • What are candle clocks and how they measured time?