1. Which metal is extracted from the ore 'bauxite'?   Gold   Aluminum   Iron   Tungsten   Hint Half-n-half Clue   2. Metals that can be easily beaten into sheets are known as _______ metals.   polymer   beatable   malleable   ductile   Half-n-half Clue   3. Metals are usually good conductors of heat and electricity.   True   False   4. Which metal is extracted from the ore 'hematite'?   Tin   Iron   Aluminum   Manganese   Half-n-half Clue   5. Sodium is very reactive and may burn on exposure to air. Therefore, it is kept under _______.   acids   oil   water   ice   Half-n-half Clue   6. Brass is _______.   a compound   an alloy   a mixture   an element   Half-n-half Clue   7. Which of the following does not belong to this group?   Sodium   Lead   Iron   Oxygen   Half-n-half Clue