C10 - Using Resources

C10 - Using Resources

1. Carbon Cycle

   • Carbon in fossil fuels
     • Burned
       • carbon dioxide in the atmosphere
         • Photosynthesis by green plants
           • Carbon locked in plants
             • Decomposers break down dead organisms
         • Carbon dioxide dissolves in the ocean
   • Respiration from organisms

2. Metals from Ores

   • Blast Furnace
     • This is how we separate iron from iron oxide
     • Added together
       • Crushed iron ore
         • From rocks containing haematite
       • Coke
         • powdered carbon from coal
       • limestone
         • from rocks
   • Electrolysis
     • We can use this to separate very reactive metals

3. The 6 Rs

   • Rethink
     • Refuse
       • Reduce
         • Reuse
           • Repair
             • Recycle

4. Combustion

   • Complete Combustion
     • Plenty of oxygen
     • Word Equation
   • Incomplete Combustion
     • Not enoug oxygen
     • Produces Soot (carbon)
     • Produces carbon monoxide
       • CO is toxic
     • Word Equation