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We are currently experiencing a delay with CD production. CDs are being sent and will be delivered as soon as possible. We apologize for the inconvenience.
Showing 1 - 20 of 706 items
By Karen Krossing. 2022
By Jeanne Bendick. 1971
By A. Rosalie David. 1978
An account of how scientists and archaeologists have adopted new methods to further reveal the secrets of the past, as…
in the postmortem examination of a young girl dead for more than 2,000 years. Includes a brief explanation of Egyptian history and burial ritualsBy Frances A Karnes. 1995
Profiles of twenty young female inventors arranged by type of invention. The authors explain the inventing process and how to…
turn an idea into a product. Also included are listings of organizations to contact, motivational quotations, and facts about female inventors in history. For grades 5-8By Tom Standage. 2000
Chronicles events surrounding the 1840s discovery of the eighth planet from the Sun. Describes how British mathematician John Couch Adams…
deduced Neptune's existence from formulas--in work ignored by Britain's royal astronomer. Then Frenchman Urbain Le Verrier reached a conclusion similar to that of Adams, sparking a race to view the planet.By Julie Roberge, Aless Mc, Charles Simard. 2023
By Paul Hodge. 1970
By John Fuller. 1987
Account of the damage twenty-eight tornadoes spawned in a four-and-a-half-hour period on May 31, 1985, in western Pennsylvania and northeastern…
Ohio. With winds up to three hundred miles per hour, seventy-five people were killed and more than a thousand were injured. Entire towns were flattened, creating scenes of horror and destructionBy L. Carron. 1986
A brief history of telegraphy from the earliest times to the computer age. Presents the International Morse Code and offers…
instructions and advice on learning, sending, and receiving messages in codeBy Sheila Tobias. 1987
Designed especially for students who do not fare well on achievement tests, the book begins by discussing math anxiety and…
ways in which students can relieve it. The rest of the book is devoted to new techniques for problem solving, explaining the concepts on which math is based, and providing examples of the uses of mathematics in the "real world." For high school and adult readersBy Harry Shipman. 1987
The author uses the explosion of the "Challenger" as the basis for his discussion of the United States space program.…
He outlines the practical uses of space projects, such as for transmitting communication, monitoring the weather, spying, and exploring the near and distant universe. He ends with a look toward the future and the evolving role of humans in spaceBy Timothy Ferris. 1988
This is a story of the human quest to comprehend the enormities of cosmic space and time. Ferris focuses on…
the individuals who shaped the fields of astronomy, physics, religion, and philosophy, describing scientific concepts in straightforward terms. Sequel to "The Red Limit."By Nathan Aaseng. 1987
Robert Koch, Bela Schick, Edward Jenner, Emil von Behring, Paul Ehrlich, and other Nobel Prize winners who discovered the causes,…
cures, and prevention of infectious and nutrient-deficient diseases are presented. For grades 5-8 and older readersBy Dorothy Patent. 1987
Wheat is the most important food in the world. It gives more nourishment to more people than any other food.…
The earliest cultivated wheat was probably raised by villagers in Iraq, Turkey, and Iran around 7,500 B.C. The author examines the history, cultivation, harvesting, and processing of wheat. For grades 4-7 and older readersBy Melvin Berger. 1988
Is there intelligent life on other planets? Do UFOs (unidentified flying objects) and ETs (extraterrestrial beings) really exist? The author…
presents the search by scientists for the answers to these and similar questions. He also describes some of the best-known sightings of UFOs and speculates about possible visits to Earth made by ETs. For grades 6-9By Isaac Asimov. 1983
The universe, made up of billions of galaxies, is vast and mysterious. Asimov details what we know about the universe…
and how this knowledge was gained. He also discusses the Big Bang theory. For grades 5-8 and older readersBy George Beshore. 1988
Documents the achievements of the ancient Chinese in medicine, astronomy, cosmology, science, and technology over thousands of years. Describes the…
compass, water wheels, rockets, movable type, and other innovations. For grades 6-9 and older readersBy George Beshore. 1988
By Augusta Goldin. 1988
The author details environmentally sound approaches to energy production. Individuals and communities are using the sun, earth, wind, and water…
to produce energy cheaply and efficiently. Anecdotes explain how methane is collected from manure, how liquid fuel is derived from sugarcane, and how some farmers are harvesting hybrid trees for new energy sources. For junior and senior high readersBy David Fisher. 1988
Informally and enthusiastically, physicist Fisher presents facts and theories on the beginnings of our universe and its evolution over millions…
of years. Topics include the big bang theory, black holes, pulsars, the origin of light, and the formation of our planet. Throughout, Fisher communicates a sense of wonder and delight in how scientists work to discover the truth. For junior and senior high and older readers