1. Metals are obtained from their oxides by the process of _______.   oxidation   electrolytic separation   reduction   roasting   Hint Half-n-half Clue   2. With which metal does oxygen combine to form rust?   Gold   Iron   Silver   Platinum   Half-n-half Clue   3. Metals are usually good conductors of heat and electricity.   True   False   4. Which metal is extracted from the ore 'bauxite'?   Tungsten   Iron   Gold   Aluminum   Half-n-half Clue   5. Metals that can be easily beaten into sheets are known as _______ metals.   polymer   malleable   ductile   beatable   Half-n-half Clue   6. Bronze is an alloy of _______.   copper and zinc   barium, zinc and iron   copper and tin   lead and copper   Half-n-half Clue   7. Rocks that are rich in metals are known as _______.   slag   metalloids   allotropes   ores   Half-n-half Clue