He is a famous author and a person who is respected by many people.

This festival is held every year.

This compound is iodized by iodization.

The chemist conducted an experiment to iodize this substance.

The experimenter analyzed the data in detail.

He is an excellent chemist who made many discoveries.

Chemotransmitters play an important role in the transmission of information between nerve cells.

He is majoring in chemistry at university.

What is this material made of?

We conducted a new experiment in science class.