The Mystery of Black Stones. An Exciting Journey into the World of Coal

The book "The Mystery of Black Stones" will help young explorers understand in an engaging way:
- What is natural coal? How did it end up underground or maybe someone put it there?
- How is an underground mine structured? Why are... machines needed there? Can they dig by themselves?
- If coal is "dirty", how is it made clean at the enrichment plant?
- Can syrup for candies and sweets be made from coal?Together with his loyal dog Frosya, Kostya embarks on an exciting journey into the world of coal! Along the way, they will meet a dump truck driver, an enrichment plant director, a chemist-scientist, and many others. And the smart gadget KA-10 will help turn even the most complex questions into magical discoveries.• Colorful illustrations of technology.
• Clear diagrams of complex processes.
• Interactive activities for children.
• Interesting facts.A book for young explorers who love discovering the world and for parents who want their children to grow up smart, brave, and self-confident!