Presents an introduction to canals, in simple text with illustrations, providing information on the history of the waterways and how they a built, including three of the world's best-known canals, the Erie, the Suez, and the Panama.
Simple text and photographs describe a variety of trucks, including flatbed, articulated, garbage, and dump trucks. Includes a time line, a glossary, resources, and an index.
Introduces important scientific principles and provides basic definitions of common terms in standard alphabetical arrangement with references to related entries.
