These two elements chemically combine to create a new substance.

This chemical reaction is very dangerous.

This chemical reacts when heat is added.

We conducted a new experiment in science class.

We will conduct a new chemistry experiment tomorrow.

Organic solvents play an important role in chemical reactions.

I often go birdwatching in the park on weekends.

I love organic chemistry classes.

He committed another crime while on probation.

His travel story was very interesting.