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Presents information about the endocrine system, including what it is, conditions and diseases associated with it, how endocrine problems are diagnosed and treated, how to maintain a healthy endocrine system, and ways of coping with endocrine problems. -
Discusses energy sources, including their history, nuclear power, renewable energy resources, the effects of the search for resources on the world, and possible future developments. -
Presents a general history of the cultural and social aspects of the ancient Maya and Aztec empires up to the arrival of Spanish conquerors, in a book that also provides readers with instructions for creating such related craft projects as a feather fan, a mosaic mask, a codex, and a miniature pyramid temple. -
Readers learn about real-life case studies involving stem cell research, the sources of stem cells, ethical issues surrounding the use of stem cells, and stem cells' promising possibilities for medical use in bone marrow transplants, treating leukemia, and rebuilding injured organs. Legal issues and rulings around the world are also examined. The volume includes sidebars that provide expert viewpoints on the stem cell research debate, as well as fact boxes and summary boxes that highlight the key points in each chapter. -
This book looks at the business of sports, from ticket sales to merchandising to televised broadcasting. -
Describes the design, construction, and operation of famous skyscrapers. -
Presents an introduction to rivers and streams, including the effects they have had on human settlements and trade, and the physical geography of the earth; also examines the major rivers in the world, including the Nile, Amazon, and Ganges. -
Presents a history of ancient American civilizations prior to the arrival of Columbus, discussing history, agriculture, religion, architecture, art, and politics. -
Introduces the motorcycle, including its different parts, how it functions, and the safety precautions to operating a motorcycle. -
Describes modern developments in the field of genetics, discussing the mapping of the human genome, the genetic causes of afflictions, and genetic modification. -
The increasing power of mobile communications devices has reached the point where they now act as a pocket-sized computer. With this much power, a wide range of downloadable applications, and always-available Internet access, the ability to use todays smartphones for productivity and schoolwork has huge potential. This book examines the uses, applications, and relative strengths and weaknesses among these devices. It also reveals how mobile devices can be used to find information related to communication, research, school work, and even fun and games. The reader will discover the latest techniques for gathering information on-the-go, in the form of digital photos, text, audio, and video, using mobile devices. They will also learn how to use those same mobile devices to organize, retrieve, and relay the information they have gathered to friends, family, study partners, and teachers. The book also includes the latest guidelines for proper digital and cell phone etiquette and security, Myths and Facts, and 1 Great Questions to Ask an IT Specialist -
Describes headaches and migraines, including the difference between headaches and migraines, what causes migraines to occur, and how to prevent them from reoccurring. -
Describes the key aspects of magnetism, discussing magnetic fields, electromagnetism, and common uses of magnets. -
This book gives students an in-depth look at how large telescopes work. The wonder and awe of space and the scientific instruments we use to study it both come shining through in this fascinating book. Full-color diagrams and illustrations will help students visualize how the technology of telescopes works. Students will learn about the creation of mirrors 26.2 feet wide and telescope teams that work together to create a telescope as powerful as if it had a mirror the size of Earth! -
Today there are more than 1.1 billion Muslims in the world. Even in the wake of this enormous growth, many of the practices established by Muhammad remain intact today. By adhering to the Qur’an, Muslims observe a rich cultural tradition that bridges the past, present, and future worlds in a community of the faithful. -
Introduces islamic innovations ranging from the astrolabe to the scientific method. -
Describes the different climates around the world, from tropical to cyclonic and polar, discusses how they affect the environment, and explains the potential dangers of climate change. -
Discusses the extent and effects of human trafficking, the term that is used today for modern-day slavery, which takes place in almost every country in the world. -
Describes globalization, including how it works, its positive and negative effects, and its relationship with world immigration. -
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Nothing can capture attention like the thrill and rush of roller coasters. Your students will learn how the force of gravity makes their favorite roaring rollers move. -
Since the terrible events of 9/11, more attention than ever has been paid to the threats and challenges posed by terrorists. Weinberg explains who the terrorists are, where they came from, what motivates them, and what, if anything, can be done to stop them. It provides a fascinating insight into how terrorist 'cells' operate and what they might do in the future. Leonard Weinberg is Foundation Professor of Political Science at the University of Nevada. He has also served as a consultant to the United Nations Office for the Prevention of Terrorism and was a recipient of the 1999 Thornton Peace Prize. -
Introduces genetically modified foods, describing current research, health concerns, and their effect on modern agriculture. -
The world's wildlife is vanishing at an alarming rate. Scientists at the Nature Conservancy and the World Wildlife Federation estimate that one in four mammals, and a full third of Earth's amphibians are in danger of becoming extinct. Today species are becoming extinct at a rate that is anywhere from 100 to 1,000 times faster than normal. People have been in fierce competition with wild animals for land, food, and natural resources for years. When over-hunting and -fishing of species and a rise in the level of pollution is added to this mix, humans come to represent the single gravest threat to wildlife survival. Any species that disappears leaves a hole in the web of life. Mass extinction would leave so many holes that the web might totally fall apart. Humans must realize the important role wildlife plays in the survival of the planet and reverse the damage--before it's too late. -
The Internet brought about a total revolution in the world of information. Today, anyone with an Internet connection can access a wealth of information online. As our access to data increases, copyright laws struggle to keep up. This book examines how copyright law has been applied to online content, the emerging open source movement, fair use, proper citation practice, and the ethics of using and citing online information. It is an invaluable resource for today's students. -
Curious readers will discover how the world's climate is changing from the greenhouse effect and the ozone hole, and what we are doing to help our planet. -
Chemistry is often a daunting subject for students, fostering a bewilderment that sets in upon their first encounter with the Periodic Table. This book demystifies an important aspect of the subject--chemical reactions--and demonstrates exactly how fascinating and fun chemistry can be. Starting out by explaining just what a chemical reaction is--and what it isn't--the book details in accessible language the various kinds of chemical reactions that are possible. It draws upon readily comprehensible everyday examples, like rusting metal, baking bread, battery power, digestion, rotting eggs, and burning candles. The book then turns to a survey of the history of chemical research, beginning in the Ancient and Classical Worlds, progressing to the Medieval alchemists and Renaissance innovators, and ending with the leading lights of modern chemistry. Readers will be introduced to luminaries such as Antoine Lavoisier, John Dalton, Louis Pasteur, Dmitri Mendeleyev, the Curies, and Ernest Rutherford. It concludes with an inspiring examination of how current research and cutting edge developments are using chemistry and chemical reactions to save lives and insure continued life on Earth. This book amply illustrates the accessibility, relevance, and gee-whiz fun of chemical reactions. -
The spread of harmful chemicals and biological organisms can injure and kill thousands of people and make an infected area unlivable for some time to come. In the age of modern terrorism, many people fear militant organizations will unleash chemical and biological weapons in public places. This book provides readers with an overview of what these weapons are, who uses them and why, and explains how much of a threat they are to our way of life. Over time, countries have pledged to ban the use of CBWs in various agreements, with limited success. -
When Henry Ford put an engine on a horse carriage, he had no idea that his simple invention would revolutionize the world. Read about how an everyday part of our lives started with a single, simple concept. -
Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph! -
This book explains the latest scientific thought behind biodiversity and why a variety of species on our planet is essential. Further, the author explains recent efforts to preserve our world by curbing global warming. -
As the world's population expands, so too does the risk of communicable disease and global pandemics. Consequently, healthcare has assumed a greater centrality in the public consciousness both in the United States and around the world. With various national and international organizations dedicated to epidemiological research and disease control, societal welfare has become an increasingly significant aspect of public policy. The historical, legal, and scientific factors that form the basis of public health locally and globally are the subjects of this relevant and revealing volume. -
Artificial Intelligence is one of the most intriguing and difficult technological advances ever explored by man. It is the study of intelligent behavior and the attempt to recreate it through technology. This beginner's guide explores, not only the technology behind AI, but the current and future benefits of further exploration. -
Because of the biological similarities between many animals and humans, scientists can learn about diseases, and find out how humans might react to medicines, cosmetics, chemicals, and other products by testing them on animals first. According to the Humane Society of the United States, more than twenty-five million animals are used in research, testing, and education each year. Readers learn about the various philosophies on animal testing, what tests are used, and how they are performed. The book presents the pros and cons of animal testing and some of the alternative methods to animal testing that scientists are developing today. -
Los trenes fueron una de las primeras formas mecanizadas en que los humanos solían viajar largas distancias. Los lectores verán cómo cambiaron la forma del país al transportar humanos y suministros de costa a costa. -
¡Imagínese viajar a la mitad de la velocidad de un avión sin abandonar el suelo! Los estudiantes descubrirán la tecnología que hace posible tales velocidades, desde pistas especiales y precauciones de seguridad hasta trenes diseñados aerodinámicamente. ¿Cuáles son los límites de la velocidad de los trenes? ¿Qué impone esos límites? Los estudiantes también leerán sobre el futuro del viaje en tren de pasajeros, desde trenes voladores hasta trenes que usan imanes enormes para levitar pulgadas o centímetros de la vía. ¡Algunos trenes alcanzan con seguridad velocidades de más de 200 mph! -
¡Estos trenes de pasajeros pueden viajar más de 180 millas por hora! Estas maravillas modernas de la tecnología fascinarán a cualquier lector. -
El transbordador espacial ha llevado a cientos de personas al espacio desde su primer vuelo. La convincente historia de las exploraciones del transbordador espacial pondrá a sus lectores en órbita. -
El tenis tiene millones de fanáticos. Niños y niñas de todo el país están recogiendo cohetes. Los lectores aprenderán cómo realizar muchos cambios diferentes y encontrarán otra información esencial en fotos claras y un texto fácilmente accesible. -
Este libro ofrece a los estudiantes una mirada profunda sobre cómo funcionan los telescopios grandes. La maravilla y el asombro del espacio y los instrumentos científicos que usamos para estudiarlo brillan en este libro fascinante. Los diagramas e ilustraciones a todo color ayudarán a los estudiantes a visualizar cómo funciona la tecnología de los telescopios. ¡Los estudiantes aprenderán sobre la creación de espejos de 8 metros de ancho y equipos de telescopios que trabajan juntos para crear un telescopio tan poderoso como si tuviera un espejo del tamaño de la Tierra! -
Este libro les dará a los estudiantes una comprensión de la historia del vuelo hasta la tecnología y los descubrimientos científicos que nos permiten volar aviones tan grandes como los superjumbo jets actuales. ¿Cómo se diseñan los aviones para que puedan operar de manera segura? ¿Cuál es el futuro del vuelo? ¡Todas estas preguntas y más serán respondidas a medida que los estudiantes echen un vistazo a los superjumbo jets, por dentro y por fuera! -
Explica qué hace que un edificio alto sea un rascacielos, discute el diseño, construcción y estructura de los rascacielos, y describe rascacielos prominentes en Nueva York, China, Malasia y otros lugares. -
¡Los musicales son divertidos y emocionantes! Los lectores jóvenes aprenderán cómo se une un musical y cómo es actuar en el escenario. -
Los lectores jóvenes tendrán una visión profunda de la vida de un piloto de carreras y del arduo trabajo que se necesita para convertir el trabajo soñado en realidad. -
El fascinante y glamoroso mundo de la moda intriga a niños y adultos por igual. Los lectores jóvenes aprenderán cómo sus diseñadores favoritos confiaron en el trabajo duro y el talento para convertirse en las superestrellas que son hoy. -
A los niños les encanta cocinar, y el surgimiento de chefs famosos los ha hecho aún más interesados en las artes culinarias. Este divertido libro explica cómo se hacen los maestros de cocina y ofrece consejos para jóvenes cocineros. -
A los niños les encanta cocinar, y el surgimiento de chefs famosos los ha hecho aún más interesados en las artes culinarias. Este divertido libro explica cómo se hacen los maestros de cocina y ofrece consejos para jóvenes cocineros. -
Los lectores jóvenes tendrán una visión en profundidad de la vida de un jugador de béisbol profesional y del arduo trabajo que se necesita para convertir el trabajo soñado en realidad. -
¡Luces, CAMARA, ACCION! Los lectores aprenderán cómo los directores, escritores, animadores, cinematógrafos y actores trabajan juntos para hacer una película. -
¿Cómo llegaron las bicicletas con motores a velocidades récord en solo 100 años? Los lectores reacios se sorprenderán de cómo las motocicletas se han convertido en modos de transporte tan emocionantes. -
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¿Sabías que Malasia tiene los edificios más altos del mundo? Los estudiantes serán introducidos a estas inmensas estructuras con fotografías vívidas y texto atractivo. -
Muchos niños han oído hablar de represas, pero no muchos saben lo que son. Este libro atrae a lectores jóvenes ya que revela los muchos aspectos fascinantes de la presa más grande del mundo, que fue construida en la frontera de Paraguay y Brasil. -
Los humanos han usado botes por cientos de años. Vea cómo los barcos se han convertido en las poderosas embarcaciones oceánicas que usamos hoy. -
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Veterans Day was established to honor the veterans of World War I. Today, the holiday is used to show gratitude for all people who have served in the military. Easy-to-follow text in English and standard Latin American Spanish explains the history and ceremonies associated with the holiday. Full-color photographs show patriotic ceremonies and parades and will help emerging and bilingual readers appreciate the importance of this holiday. -
In this riveting bilingual caption book, young naturalists will learn about the group dynamics of a pride of lions. This book is written in English and standard Latin-American Spanish and provides both a fun introduction to these fearsome and fascinating big cats and an opportunity to acquire vocabulary in another language.
