4 words in this vocabulary list
verb to decompose a compound by passing an electric current through it
verb to make or become hard or harder
adjective having become solid or firm; toughened
adverb in a hardened manner
noun the act or process of leaching
verb to dissolve out soluble constituents from (ashes, soil, etc.) by percolation
noun the process or result of oxidizing, or being oxidized.
adjective relating to or undergoing oxidation.