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6. Ores are rocks that contain very large amounts of minerals from which metals can be extracted...

  • False
  • True

7. Argon is not found in the Earth's atmosphere

  • False
  • True

8. Can Aluminium be extracted by using electrolysis?

  • YEAHH MANN!!
  • NO WAYY!!

9. Which of these facts about metals is FALSE?

  • they conduct electricity
  • they are strong
  • they have low melting points
  • they are melleable

10. Electrolysis is the breaking down of an elecrolyte using an electric current...

  • True
  • False

11. The ___________ is the layer of gas which surrounds the Earth.

  • hydrosphere
  • atmosphere
  • lithosphere
  • biosphere