He is a professor of physics.

We conducted a new experiment in science class.

He is a world-renowned scholar.

We will conduct a new chemistry experiment tomorrow.

She wants to learn the technique of jianzhi (Chinese paper cutting).

He cut the paper with scissors.

Transition metals play an important role in chemical reactions.

When he opened the door, a metallic sound echoed.

Alkali metals are very reactive chemically.

Metallic bonds are formed by ions floating in a sea of electrons.