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 liquid to a solid or to a gas are called phase changes. When a substance such as water changes phase, its physical appearance changes, but not its chemical properties. This is because the chemical structure remains the same, but the molecules of which it consists will float a little further apart.