Have you ever heard of a water clock? A water clock was an ancient way to tell time with natural elements, similar to an hourglass or a sundial. Time is measured by the flow of water from one container to the other. It is one of the oldest ways to measure the passing of time! We made a homemade water clock this week and I am going to show you how I did it.
They used to make water clocks with bowls that had a hole at the bottom and was placed on a ledge above another bowl. The water poured into the second bowl. As time went on they became more advanced with gears and water wheels. They calibrated the water clocks with a sundial for accuracy. You can still use them to measure time today!
The water clock we created is made out of water bottles. It is pretty cool! It works like an hourglass with the water passing back and forth between the two bottles. It is fun to create something that measures time without technology. My kids were amazed that this was even possible since they are so used to the digital era.
How to Make a Homemade Water Clock:
Supplies you will need-
Empty the water bottles and keep the lids. Using a hot glue gun, glue the tops of the two lids together.
Find drill bit to match the width of your straw and drill two holes through the two caps.
Cut the straw in half and place them through the holes with one long and one short facing each side. Trim off the extra. And hot glue around the edges of the straw to secure them in place.
Fill one bottle with water and screw the lids back on to both bottles.
Flip the bottle and time the water. Mark with a line at each minute. Flip and do the same on the other bottle so both sides have the minutes marked.
The water clock can be used as a regular timer for games or activities. Add colored water to make it more interesting! My kids have been totally obsessed with this since I made it!
This is part of the 31 Days of Outdoor STEM series hosted by Little Bins for Little Hands.