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Class 7
Chapter 8 Class 7 - Measurement of Time and Motion (Curiosity)

Hourglass and Candle Clocks

Last updated at May 4, 2026 by

Hourglass

  • An hourglass uses the flow of sand from one bulb to another.
  • A fixed amount of time has passed when all the sand has fallen.

Candle Clock

  • A candle clock is a candle with markings on it.
  • As the candle burns down, the level reaches each mark after a fixed time.
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