Egyptians Used Water Clock To Tell Time
Did you know that ancient Egyptians used water clocks to tell time at night and sundials during the day? I learned this from my History lesson yesterday.
We thought that is so cool so we made our own version of a water clock.
Here are the materials that we used:
- 2 water bottles (one full, one empty)
- 2 small pipes (you can use the tube from an empty ball pen)
- glue gun
- Join the 2 bottle caps using the glue gun.
- Poke two holes on the caps and insert the tubes. Make sure there are no gaps for the water to escape.
How the water clock works:
Using a stopwatch, check how much time it needs for all the water to flow from one bottle to another. Once you know how much time, you can already use it as a timer for your activities like exercising, games, cooking, and a lot more.
The bottle that we used has a volume of 330mL and it took 33 seconds for all of the water to flow to the empty bottle. Therefore, the rate at which the water flows is 10mL/second.