Gas That Gives You a High-Pitched Voice
This page is the CodyCross answer for the clue below from Ancient Egypt, Group 183, Puzzle 1 (Archaeology).
Question is: Gas That Gives You a High-Pitched Voice
and the answer is: HELIUM
Word Meaning:
HELIUM — (uncountable) The second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
Definitions from Wiktionary.