You can use a spectrometer to examine the composition of a substance.

He went to the library to investigate the incident.

Let's analyze the composition of this compound.

This compound is made up of hydrogen and oxygen.

I will work using this laptop.

This spectrum is very beautiful.

This machine is used to divide light into a spectrum.

My plan is to go on a trip next week.

What is this material made of?

How accurate is this thermometer?