METALS

METALS

1. Chemical elements organised in the periodic table. Generally solid at room temperature, which is a good conductor of heat and electricity

2. The types os metals are:

   • Iron
   • Copper
   • Silver
   • Tin
   • Gold
   • Mercury
   • Lead

3. Properties

   • Very dense
   • Good heat and electricity conductors
   • Reflect light
   • Are solid and room temperature except mercury
   • They can be bixed with other metals
   • More metals are grey

4. Obtaining metals

   • Mining
     • Open-pit mines
     • Underground mines

5. Envioment problems

   • Mining spoils the landspace
   • It alters the sil structure
   • Blasting
   • Sound pollution

6. Metalwoking tools

   • Drilling tools
     • Drills
     • Drill bits
     • Punches
   • Filing tools
     • Grinders
     • Files
     • Sandpaper
   • Cutting tools
     • Hand tools
       • A hascksaw
       • Snips
       • Shears
     • Electric tools
       • A jigsaw
       • An angle grinder