La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo físico en este libro con el tema del ciclo del agua.
Learn how structures are being built to withstand nature's destructive forces.
En este libro aprenderás la importancia de llevar especies extranjeras a lugares distintos a su ecosistema original y todos los efectos negativos que pueden causar al ambiente.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo natural con el tema de cómo viven y crecen las plantas.
Historia de la NASA, sus antecedentes y distintas etapas que han repercutido en el desarrollo de la ciencia y la tecnología, además de traer influencia positiva para la civilización.
Water plays a vital role in nearly every bodily function, including regulating temperature and removing toxins. Fiber is essential for gastrointestinal health. This compelling book examines how fiber and water work together to help our digestive tracts run smoothly.
Our organs, bones, muscles, skin, and hair either contain or are made of proteins. This engaging title explains how our bodies break down large protein molecules into the amino acids that our bodies need to maintain our muscles, bones, blood, and body organs.
Minerals boost our immune systems, support normal growth and development, and help cells and organs function. This engaging title explores the roles of key minerals, such as calcium, iron, potassium, and magnesium.
We all know that vitamins are necessary for proper growth and good health. But what vitamins do we need and how does our body use them? This informative title identifies essential vitamins and explains how our bodies absorb them.
Even though carbohydrates have been given a bad rap in recent years, they are essential for maintaining good health. This fascinating title examines the chemical structure of carbohydrates and explains the differences between simple and complex carbohydrates.
There is a great deal of fuss about fat! Fat is an essential nutrient for optimal health, however too much fat can lead to health problems. This informative title helps clear up the confusion about this controversial nutrient.
In 1912, German meteorologist Alfred Wegener proposed that the continents were once a single land mass but had slowly moved apart over millions of years. This fascinating book examines the scientific process behind Wegener's theory and how it challenged prevailing views of the time. Learn how years after Wegener's death his theory was embraced by scientists and is now the basis for modern earth science.
Learn how John Dalton developed his influential theory that explains the shape, structure, and behavior of atoms. This title also explores how Dalton's major breakthrough made later discoveries, such as atomic fission, possible.
This engaging title examines how Darwin developed his controversial theory of evolution, including his research methods and the data gathered during his extensive voyages. The book also explores the controversies that developed around the publication of Darwins theory of natural selection and how the debate continues today.
French chemist Louis Pasteur made several significant contributions to the world of science. This intriguing book examines how Pasteur uncovered the basis of the modern germ theory. Readers will learn how Pasteur's theory helped him develop vaccines for anthrax, rabies, and other diseases and how his work continues to influence modern medicine.
This fascinating new title examines the sequence of events that led to the formation of cell theory. In 1665, scientist Robert Hooke published Micrographia, the first significant work focused on miscroscopial observation. His groundbreaking work inspired scientists and led to the creation of this fundamental biological principle that shaped modern biology.
This exciting book examines how Sir Isaac Newton developed three basic laws that govern the way in which objects move. Readers will learn how Newton expanded on the work of other great scientists, including Galileo and Copernicus, to make his important discovery. The book also explains how Newtons laws have influenced modern science and technology in areas such as sports and transportation.
The Tigris and Euphrates rivers surround a region once known as Mesopotamia, the "cradle" of ancient civilizations that included Sumer, Babylonia, and Assyria. This fascinating book follows both rivers from where they begin in Turkey, travel down through northern Syria and Iraq, and join to form the Shatt al Arab before emptying into the Persian Gulf.
This informative book follows the St. Lawrence River, once a main route of the fur and timber trades. This important commercial waterway forms part of the boundary between Canada and the United States and connects the Great Lakes with the Atlantic Ocean. Today, a system of canals, dams, and locks lets seagoing ships travel all the way to Lake Superior.
The Nile is the worlds longest river and the birthplace of one of the greatest civilizations of the ancient world. This book takes readers along the River in the Sand. Ancient Egyptians depended on the Niles annual floods to deposit fertile soil for farming. Today, more than 70 million people still grow crops in the rivers basin and fish in its waters.
The mighty Yangtze River, the third-longest river in the world, is the birthplace of Chinese civilization. This intriguing book takes readers along this ancient transportation route, strategic natural boundary, and lifeblood of an agricultural society. The near completion of the Three Gorges Dam has displaced more than a million people and changed the river's ecosystem dramatically.
This engaging book highlights the Rhine River, a major transportation route in Western Europe. Fairytale castles and picturesque vineyards provide scenic stretches between Basel, Strasbourg, Cologne, and Rotterdam. Cooperation by Switzerland, France, Germany, and the Netherlands has helped restore the rivers health.
This amazing book reveals the facts about the Ganges, a river sacred to Hindus. Flowing through one of the most densely populated areas in the world, its banks are also the site of shrines, temples, and holy cities, including Varanasi, one of the oldest continuously inhabited cities in the world.
This wonderful book takes readers along the mighty Mississippi. Often celebrated in music and literature, its exploration by explorers spurred the growth of a new nation. Today, the Mississippi not only provides transportation for agricultural and industrial goods but also supplies water for millions of people.
Second in length only to the Nile, the Amazon River carries a greater volume of water than any other river in the world. This attractive book features the fascinating facts about this far-reaching river and the animals, plant life, and indigenous cultures that live in the surrounding rain forest.
