Gold Quiz

This quiz is based on gold facts at Gold Downunder.

It can be completed online by starting at the first gold fact sheet (there's a prize at the end!), or you can print out and copy the list of questions below.

1. What is the chemical symbol for gold?
   1. Pb
   2. Ag
   3. Au
2. All metals are solid at room temperature.
   1. True
   2. False
3. According to Moh's scale, gold has a hardness of
   1. 2-4
   2. 2.5-3
   3. 3.5
4. Gold is so malleable it can be beaten into a very thin sheet called "gold leaf" which is
   1. less than one tenth of a millimetre thick.
   2. one millimetre thick.
   3. one thousand microns thick.
5. Gold is
   1. very reactive to most chemicals.
   2. very unstable.
   3. not easily tarnished.
   4. very corrosive.
6. Gold melts at a temperature of
   1. 2660 degrees C.
   2. 1660 degrees C.
   3. 196.97 degrees C.
   4. 1060 degrees C.
7. Gold was formed in Western Australia
   1. thousands of years ago.
   2. thousands of millions of years ago.
   3. hundreds of years ago.
8. 24 carat gold is
   1. 100% pure gold.
   2. part gold, part silver.
   3. 24% gold.
   4. often called white gold.
9. Gold is so heavy that it weighs
   1. over 19 times more than lead.
   2. the same as 19 milk cartons.
   3. twice as much as water.
   4. over 19 times as much as water.
10. Gold is so rare it makes up only
    1. 5 ten millionths of the Earth's outer layer.
    2. 5 tenths of the Earth's outer layer.
    3. 5 millionths of the Earth's outer layer.
    4. 10 millionths of the Earth's outer layer.