Steel and Iron 453 



SUGGESTIVE QUESTIONS 



1. Why are meteors the only iron found in nature not in com- 

 pounds? 2. Which would you compare to a rod of wood, a wrought 

 iron bar or a steel bar? Explain. 3. How does a blacksmith weld 

 pieces of iron ? 4. If gold were as abundant as iron, and iron as rare 

 as gold, what would be the effect on our civilization? 5. Why was 

 copper used before iron? 



