Water is a great compound to use for classroom hydro experiments because it is cheap, free in most cases, and because it is a relative safe compound to work with. However, while these logistical features make water a practical ingredient to experiment with, but there is more to water than meets the eye. Water has very unique characteristics that allow it to accomplish things that other liquids cannot, and scientists are still learning new and exciting things about one of the most basic ingredients of life on Earth.
A recent news story about the properties of water at super cool temperatures stated that even at temperatures well belong freezing, or 0 degrees C, water can remain a liquid. While this in itself is an interesting tidbit of information, what is even more amazing is that when under significant pressure and super cooled, water actually exists as two unique liquid forms, high density water and low density water. What this means to science, no one knows yet, but the possibilities are limitless.
Soft, flowing, abrasive, tarnishing, sticky, cleansing, nourishing, sterile, life supporting, life threatening, clear, clean, fluid, frozen and gaseous. These are all words that can be used to describe water in its many forms. As a science teacher, scientists, parent or student, you have the opportunity to inspire people to examine how the elements of the world work together. Keeping up to date with news stories like this one, is just one way you can make science approachable, practical and contemporary for students.
24 hour science projects can utilize just about any compounds you have on hand. Water is a cheap, versatile and interesting ingredient that will allow you to create science fair project ideas that will be exciting. Here are some hydro science fair kits and ideas.