It's the most common substance on Earth, but far too often there's not a drop to drink.

Rubber and water are two common substances that differ from most others in their response to heat.

Carbon is just about the most common substance on earth.

A further common substance to all works of art is related to the idea of means and ends.

What if we could use some common and easily available substance for fuel?

The most common substance in the universe is called dark matter.

The most common substance from 1627 until the early- to mid-twentieth century was ivory.

Sometimes I am asked about common substances by students.

Among common biological substances, all of the simple carbohydrates are sweet to at least some degree.

But as I said- there are a number of fairly common substances she seems to be allergic to.