Carla Mooney
Author
Series
Language
English
Formats
Description
"For thousands of years, the Great Wall of China has stretched across China's Northern provinces. It winds like a giant, sleeping dragon from the Pacific coast in the east to the Gobi Desert in the west. But it's not the only wall in China. Learn abou the buidling techniques used, the empires who constructed them, and what their pruposes were over the centuries in this informative book. Put your walking shoes on and get ready to explore all the interesting...
Author
Series
Publisher
Rourke Educational Media
Pub. Date
[2015]
Language
English
Description
Explains how electric currents are generated as electrons move from one atom to another, how some materials are good conductors of electricity, and how electric currents travel to devices on electric circuits.