Materials "define" our era: - Stone Age - Natural materials e.g. stone, wood, bones, fur. - Bronze Age - Alloys of Tin and Copper for Tools. - Iron and Steel Age - Iron Replaces Bronze . - Today - Silicon Age? Polymer Age? Composite? Figure 1 Based on the Figure 1, give three conclusions which can be made on the development of materials from the ancient time until today. Try to relate it to the development in the knowledge of materials. (8.5 Marks)