Well, let's suppose for a moment that you want to separate two liquid substances using distillation process.

But the liquid substance collecting there might come from rain or a leaky water main.

It also have the ability to analyze any liquid substance that it's invisible to the naked eye.

Almost any type of solid, liquid or gaseous substance can cause water pollution.

It is used to channel liquid or fine-grained substances into containers with a small opening.

Why would anyone think of putting a liquid substance in a bag?

When more heat is added, the liquid substance evaporates and becomes a gas, which has no bonds at all.

Ceramics start as a fairly liquid substance, a kind of clay.

When looking at when a liquid substance becomes solid, most people call this the freezing point.

He added that police had found evidence of a liquid substance which may have assisted the spread and intensity of the fire.