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.
In this colorful book, students will learn about the roles and relationships of the heroes and gods in ancient Roman myths and legends. Several ancient Roman myths are retold, describing how these stories helped ancient people interpret their world.
In this colorful book, students will learn about the roles and relationships of the heroes and gods in ancient Chinese myths and legends. Several ancient Chinese myths are retold, describing how these stories helped ancient people interpret their world.
In this colorful book, students will learn about the roles and relationships of the heroes and gods in ancient Greek myths and legends. Several ancient Greek myths are retold, describing how these stories helped ancient people interpret their world.
This amazing book provides a snapshot of the arts and cultures across various ancient civilizations. Read about: Egypt's pyramids, temples, royal tombs, and palaces; Chinese games and pastimes; Rome's sports arenas-the Colosseum and Circus Maximus.
The scientific contributions of the early Islamic empires to science, medicine, and mathematics is considerable. This revealing book explores: their public hospitals, libraries, and universities; their achievements in mathematics and astronomy, and the pursuit of alchemy; Arabic numbers; optics; music and musical instruments; poetry; and education.
This informative book describes how the Muslim religion started, including the life of the Prophet Muhammad; the Hegira and Kaaba; caliphs; the split of the Sunni and Shi'a and the beliefs of both; Sufism; the Muslim calendar; key events that are remembered in Islam today; and the Hajj, or pilgrimage to Makkah.
Who are we, really? We share traits with our parents, but our genetic makeup is unique. Each one of us is a one-and-only creation. Through colorful photos, diagrams, and text, you can learn about genetics. See how the simple pea plant taught us the rules of inheritance. Find out how our genetic code is unlocking the mystery of where we came from and our connections with all living things.
All life starts with a set of instructions that can turn basic cells into hearts, tails, flower petals, or toenails. DNA is the amazing code of life that is found in every organism. Through colorful photos, diagrams, and text, you can learn how DNA is passed from cell to cell, controlling growth and change in all living things. Find out how we can use the properties of DNA to save endangered animals and even to catch criminals!
From insects to elephants, every living thing on this planet is made up of cells, the tiny building blocks of plant and animal life. Each cell is alive-and each has work to do! What do cells look like? How do millions and billions of cells work together to form one plant, one animal, or one human being? Guided by colorful photos, diagrams, and text, you can take a closer look at the amazing world of cell science-and see what's next.
Why do people migrate to and settle in the places they do? Fascinating examples from history help explain the determining factors of migration. Readers will fascinated to read about the settling the Nile in ancient Egypt; the Industrial Revolution in Britain; the opening up of the American West; the Gold Rush; and the colonization of Australia.
With fossil fuels and water running out, and temperatures and sea levels rising due to climate change, whole communities will need to move and resettle. How will human migrations on this scale be managed in our modern world? This foreward-looking book explores these important issues as well as the solutions being put forward by politicians, experts, NGOs, and private citizens.
As our world becomes smaller, how do governments and citizens manage and react to migration and settlement? Themes explored in this intriguing book include: rights and lawsfreedom of movement across borders, human rights, seeking asylum, and immigration controls; the different types of migrantsasylum seekers, refugees, illegal immigrants, the undocumented labor force; coping with migrationmigrants need safety, schooling, health care, and housing.
In the days before performance-enhancing substances, the great Hank Aaron hit a career-record 755 home runs, a mark he held for 33 years. Hammerin' Hank began his baseball career in the Negro Leagues when black players were still banned from Major League Baseball. Hank played for 23 years in Milwaukee and Atlanta and made the All-Star team in both the National and American Leagues for 20 straight years.
Dolores Huerta grew up in a climate charged by political activism. Fueled by her own contact with migrant farm workers, most of them Mexican immigrants with virtually no access to the system of labor laws and conditions under which they lived and worked, Dolores became an outspoken activist and organizer. She founded the United Farm Workers in 1962 with legendary Mexican American labor leader Cesar Chavez, and also worked toward improving the lives of workers, voters, immigrants, and women.
The plant kingdom contains more than 250,000 species. This colorful book describes the main groups of plants, including mosses, ferns, conifers, and flowering plants. Special sections highlight the role of plants in the environmentas producers in the food chain and producers of the worlds oxygenand their role in climate and the water cycle.
This interesting book features an examination of the four major groups of fungi: yeasts, toadstools, chytrids, and bread molds. Special sections explore varieties that feed on dead and decaying matter, parasites, and species that form relationships with other species. Case histories involving fungi include penicillin and the fight against disease, and genetically modified (GM) products in food technology.
This book examines bacteria that are found in virtually every environmentincluding those that are characterized by extreme heat, cold, and depthand, of course, bacteria that are found inside our bodies. Case studies examine the development of new vaccines against bacterial diseases and the use of bacteria to help fight pollution.
Some Archaea thrive in extreme places such as in thermal pools, hot vents at the bottom of the sea, extremely salty water, and even in underground oil reserves. This book examines the diverse Archaea kingdom and the division of these organisms by their unusual biology into three main groups. It also explains why little in general is known about them, and why further classification of Archaea is so difficult.
How in the world do you classify the more than one million species in the animal kingdom? This fact-packed book divides animals into the major phyla, classes, and critical features. Fascinating case histories examine the discovery of new mammal species, the need to conserve endangered species, and using natural predators to control populations and preserve species and their environments.
