Theory:

Metals
Uses
 
Iron
  • It is used to make bridges, engine parts, iron-sheets and girders.
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Copper
  • It is used to making electrical wires, coins and statue.
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Silver and gold
  • They are used to make jewels for decorative purposes and photography.
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Mercury
  • It is used in thermometers and barometers since it has high density and uniform expansion at different temperatures.
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Aluminium
  • It is used in electrical wires, cables and aerospace industries.
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Lead
  • It is used in automobile batteries and X-ray machines.
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Reference:
https://live.staticflickr.com/295/18765981471_9efbe9d63b_b.jpg
https://live.staticflickr.com/7245/7173288223_f6096b48a3_b.jpg
https://5.imimg.com/data5/JR/IN/GT/SELLER-13456823/jindal-iron-sheet-250x250.png
https://cdn.pixabay.com/photo/2019/06/17/01/31/through-arch-bridge-4278956_1280.jpg
https://cdn.pixabay.com/photo/2019/06/25/13/15/wires-and-cables-4298191_1280.jpg
https://live.staticflickr.com/5081/5318655749_b7f9d6da56_b.jpg
https://live.staticflickr.com/65535/47088623814_2c04a9ae9b_b.jpg
https://cdn.pixabay.com/photo/2017/07/07/08/47/frame-2480749_1280.png
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT9hEwOEoUdrOuc7c3X-6PuaCYiLgVav9eIdA&usqp=CAU
https://live.staticflickr.com/4012/4266609887_8dd97eb1d6_b.jpg
https://cdn.pixabay.com/photo/2012/06/28/08/26/plane-50893_960_720.jpg
https://www.shutterstock.com/da/image-vector/used-batteries-green-recycling-symbol-cartoon-279012848