Cu, Malleable, Used in Wiring, Turns Green
This page is the CodyCross answer for the clue below from Fauna and Flora, Group 179, Puzzle 1 (Reptiles and Amphibians).
Question is: Cu, Malleable, Used in Wiring, Turns Green
and the answer is: COPPER
Word Meaning:
COPPER — (uncountable, chemistry) A reddish-brown metallic chemical element (symbol Cu) with the atomic number 29; also, the metal made up of this element.
Definitions from Wiktionary.