From hospital and police codes to Cockney slang, spoken codes can be both helpful and entertaining. Learn the history behind some of today's most useful and popular codes, and then have fun creating a language all your own.
An introduction to the world of the ancient Maya shares educational, culturally inspired hands-on projects that include making a favorite Maya game, carving soap glyphs, and cooking homemade tortillas.
"Provides step-by-step instructions for science projects using household materials and explains the science behind the experiments"--Provided by publisher.