The Science of Matter and Energy

This page is the CodyCross answer for the clue below from The 70's, Group 332, Puzzle 4 (Apocalypse Now).

Question is: The Science of Matter and Energy

and the answer is: PHYSICS

Word Meaning:

PHYSICS — The branch of science concerned with the study of the properties and interactions of space, time, matter and energy.

Definitions from Wiktionary.