3. What is money made of? Coins are usually made of copper and another element, such as zinc or nickel. Currency paper is composed of 75 percent linen and 25 percent cotton. Red and blue synthetic fibers of various lengths are distributed evenly throughout the paper. Before World War I these fibers were made of silk.

4. Once upon a time, there was a no such thing as money. Each person would provide for his own food clothing and shelter. This was very time consuming and inconvenient. Through time, people began to realise that they had for what they wanted. The Stone Age man could exchange food for an axe by bartering. Thus began a system of barter by exchange of needs. One family, for instance, could raise cows and exchange them for rice or bread produced by another. Barter trade, however, was not always that simple. Sometimes, it was difficult to find someone who had exactly the item that was needed and who at the same time, also needed the goods such as bread sometimes went bad before an exchange was made, and some good (a cow, for instance) could not be cut up into small pieces (divisible) to exchange for a loaf of bread.

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