Galvanisation is the process of zinc-plating other metals to protect them from corrosion. Metal sculptures are shown being cleaned in an acid bath then dipped in a bath of molten zinc. This forms a zinc coating which will protect the metal inside for hundreds of years.
- This clip is from:
- First broadcast:
- 20 March 2008
You could compare the use of galvanisation with other forms of corrosion prevention. Students could investigate different methods and list their pros and cons before carrying out a card sort, matching different methods to specific applications. Relate galvanisation to the electrochemical series and electrolysis demonstrations carried out in the classroom.