In chemistry class, I learned about the process of polymerization.

Through this chemical reaction, monomers polymerize to form polymers.

This process takes time.

I like to study new languages.

I will teach mathematics to new students tomorrow.

I attended a math class today.

I use processed cheese for sandwiches.

He is majoring in chemistry at university.

He is an expert in chemistry.

There is a class observation at my son's school tomorrow.