A water clock is a pretty easy, quick and fun project perfect for an elementary school student (with the help of a parent or two).
The concept is a simple one: use two water bottles and a couple of coffee stirrers to make an “hourglass” with water.
A water clock is a pretty easy, quick and fun project perfect for an elementary school student (with the help of a parent or two).
The concept is a simple one: use two water bottles and a couple of coffee stirrers to make an “hourglass” with water.