This stimulating and accessible volume offers readers a fascinating view of a force known as gravity. Readers examine many scientific concepts, including Newton's laws of gravity, mass and gravitation
Traces the history of Mexican Americans and their struggle for their rights from the arrival of English-speaking Americans in the Southwest where Mexicans were already living through the rise of the C
Young dinosaur enthusiasts will love this book about reptile fossils! This volume allows readers to explore prehistoric reptiles through detailed photographs of their fossils. Engaging text is support
Looks at the style of government used by the Aztec civilization, looking at their city states, their royalty, nobility, and law, as well as how their culture affected the form their government took.
Introduces bloodsucking birds found on the Galapagos Islands and in certain parts of Africa, describing their physical characteristics and methods of drinking blood from other animals.
Presents the culture of the Mayan empire, describing their social classes, pyramids, language, religion, calendar, writing, cities, agriculture, and art.
