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.
