Preserving Metals Crossword Puzzle

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QUESTIONS LIST:

rust: corrosion process that takes place when metal combines with oxygen and water.
iron oxide: other name for rust
paint: process used to protect metal objects.
galvanising: metal object is covered with zinc
pickling: step in galvanizing where metal is washed in acid.
zinc ammonium chloride : chemical used during fluxing
molten: object is dipped into .... zinc.
finishing: excess zinc is removed.
electroplating: way to add a metal layer to an object.
ion: charged particle
electrolyte: solution that can conduct electrical current
positive: plating material is connected to the ... terminal.
negative: object is connected to the ... terminal.
epsom salts: sugar, vinegar and ... is added to form the electrolyte.