Question

What is it made from? Why?
(a) A sickle to cut sugarcane.
(b) The sheets used for roofing.
(c) A screwdriver
(d) A pair of tongs.
(e) Electric cables.
(f) Ornaments.
(g) Pots and pans.

Answer 1

(a) A sickle to cut sugarcane- Made out of iron since it is very hard and strong.
(b) The sheets used for roofing- Aluminium is used to make sheets for roofing because it is malleable i.e. it can be hammered into sheets.
(c) A screwdriver- It is made up of steel beacuse it is very hard and duable.
(d) A pair of tongs- They are made up of metals like iron or aluminium beacuse they have high melting points and do not melt while using on flames.
(e) Electric cables- Metals like silver, gold, copper and platinum are used to make wires because they are ductile i.e. they can be drawn into wires.
(f) Ornaments- Metals such as gold and silver are used for making jewellery because they are very lustrous.
(g) Pots and pans- Copper is used to make pots and pans because it is a good conductor of heat.