METALS

METALS

1. WHAT ARE METALS?

   • Chemical elements are organised in the periodic table,where they are divided into two main groups:metals and non-metals

2. TYPES OF METALS

   • Iron,copper,silver,tin,gold,mercury,and lead

3. PROPERTIES OF METALS

   • Catability,weldability,ductility,malleability,foldability and machinability

4. OBTAINIG METALS

   • Mineral extraction,separating the ore and gangue to obtain metal ingots,transforming the ingosts into useful pieces

5. ENVIRONMENTAL PROBLEMS

   • Mining spoils the landscape,it alters the soil structure,blasting producess dust ans smoke pollution and sound pollution

6. METAL WORKING TOOLS

   • DRILLING TOOLS: Drills,Drll bits , Punches
   • FILING TOOOLS: Grinders or emery grinders , Files , Sandpaper