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Let's measure time!

Let's measure time!

This lesson presents timekeeping devices and the types and units of time measurement.


Author: Jóri Johanna



time, measuring time, clock, minute, second, day, week, month, quarter year, half year, century, millennium, quartz watch, hourglass, water clock, sundial, Pendulum clock, Spring driven watch, smartwatch, atomic clock, sunset, sunrise, clock face, hand, analogue watch, digital display, measurement, mathematics, history, astronomy, physics, Middle Ages, environmental studies, nature study

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