Alinas, M: CRANES

Clank! A crane drops a steel beam on top of a skyscraper! Find out more about wrecking balls, heavy loads, and other things a crane might lift. Additional features to aid comprehension include a table of contents, informative sidebars and captions, an activity, critical-thinking questions, sources for further research, a phonetic glossary, an index, and an introduction to the author.