Cranes (Library Binding)
How does the tower crane that builds a skyscraper get so tall? Little by little, it builds itself as the building grows Just one of the topics covered in this title packed with science and engineering information.
Readers will examine the parts of a crane, discover how a crane is a type of pulley, see cranes at work, and meet "Big Carl," the world's largest crane. They will also get the chance to meet to experience what it's like to be a crane driver for a day.
After reading, put your knowledge to the test with a simple science project.