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

Ancient Devices Used to Measure Time

Last updated at May 4, 2026 by

Before clocks existed, people used four main devices to measure time within a day.

Ancient Time-Measuring Devices SUNDIAL Uses shadow of an object cast by sunlight WATER CLOCK Uses flow of water out of or into a vessel HOURGLASS Uses flow of sand from one bulb to another CANDLE CLOCK Marked candle that burns
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