High School Science Course, Substances
This page is the CodyCross answer for the clue below from Fauna and Flora, Group 171, Puzzle 4 (Terrestrial Vegetation).
Question is: High School Science Course, Substances
and the answer is: CHEMISTRY
Word Meaning:
CHEMISTRY — (uncountable) The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their molecules.
Definitions from Wiktionary.