Not that many of his customers stick around for chemistry lessons.

Think back to your chemistry lessons; think of a periodic table.

The subject, she decided, would make for a good 11th-grade chemistry lesson.

A simple chemistry lesson can explain how vitamin E does this.

The list of ingredients functions nicely as a junior-college chemistry lesson, too.

Design engineers make the decision, he said, and most of them have had no chemistry lessons since college.

"It was a simple chemistry lesson," the teacher said.

For example, an experiment in a chemistry lesson should always 'work'.

During chemistry lessons, students are required to bring along a plain white lab coat.

In the heat of battle with a Rix mind, and they were going to get a chemistry lesson.