Metals:
- Gold
- Silver
- Bronze
- Copper
- Tin
- Iron
- Steel
- Brass
- Aluminium
- Lead (Carefull with the pronunciation of this word. We talk about it tomorrow)
- Zinc
Fabric:
- Wool
- Cotton
- Silk
- Velvet
- Linen
Construction:
- Cement
- Concrete
- Tile (Floor tile, Wall tile, Roof tile)
- Clay
- Rock
- Granite
- Slate
- Limestone
- Marble
- Wood
- Plaster
Others:
- Feather
- Leather
- Rubber
- Plastic
- Coal
- Glass
- Ivory
- Crystal
- Wax
- Reeds
