Question

Solve the crossword puzzle. [2 marks]


Across:
1. A method used to prevent the rusting of movable parts of a bicycle.
2. The process of converting iron into stainless steel.

Down:
1. Coating zinc on iron objects.
2. The method used to prevent the rusting of iron gates and sheets.

Answer 1

$\bullet$ Oiling is the method used to prevent the rusting of movable parts of a bicycle. [0.5 marks]
$\bullet$ The process of converting iron into stainless steel is known as alloying. [0.5 marks]
$\bullet$ The process of coating zinc on iron objects is known as galvanisation. [0.5 marks]
$\bullet$ Painting is the method used to prevent the rusting of iron gates and sheets. [0.5 marks]