I recently noticed the following question in a blog post that I did for WeddingBands-WeddingRings.com in 2009 â How much does a wedding band or wedding ring weigh? Before you can even really answer the general question, you have to consider what type of wedding band or wedding ring that you are looking at.
In physics, a state of matter is one of the distinct forms that matter takes on. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
The changes from a solid to liquid to a gas or a gas to a liquid to a solid are called phase changes. When substances such as water change phase, its physical properties change, but not its chemical properties (water is always H 2 0 - 2 hydrogen atoms and 1 oxygen atom).