Human kind’s ability to extract fashion metal objects from various minerals found in the ground has been and continues to be central to human progress through the ages.
This video shows the processes of steel making from the mining of raw materials through smelting and rolling to the fabrication of finished products. While an undeniable promotional for AK Steel, it is nevertheless an excellent video, about 20 minutes in length.
Also google: Images for iron ore mines
(Please post questions that kids ask.)