What does chemistry study? Why is this science called that?

Substances, their properties and transformations.
Ancient Egypt is considered the birthplace of this science. The word “chemistry” has the same root with the ancient name of Egypt – Ham, which means “black” (earth). Hence, the name of chemistry, the science of the black earth, probably came from. Probably, the word “chemo” also referred to the dark and mysterious essence of science itself at that time.