Thursday, May 17, 2018

Time Keeping Devices

Watch the slideshow below. Early time measuring devices

-Look through the slide show.
The sundial

Make a Sand Timer

Can we use it to measure different amounts of time? Minutes and hours? Seconds?
Water clock- Method 1. Plastic cup, and plastic bottle to sit in it.
Lots of ways to do this- get ideas…
How could we use a water clock to set an alarm?

 Wait, WHAT?
How could we set time without drawing up a candle each time?

 What other ideas do you have about how time could be measured accurately and precisely?
Time reading

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