Heather Hasan – författare

This book explores the second most abundant element in the universe. The reader''s interest is captured through photographs, anecdotes, interesting facts, helium''s discovery, and the practical role it plays in our lives like bright balloons.

How is aluminum extracted and refined? What are aluminum’s uses, properties, and atomic structure? Clear, comprehensive illustrations, images, and diagrams assist the reader in understanding this extremely useful element.

Fluorine is a poisonous and corrosive gas and breathing just a tiny bit of fluorine can damage the lungs. But, fluorine’s reactivity makes it a very useful element - it is used in toothpaste and in nonstick surfaces for frying pans, and to refine uranium fuel that is utilized in nuclear power plants. Students learn about fluorine’s phase at room temperature, its place within a very special group, VIIA, called the halogens, on the periodic table, its physical and chemical properties, and about its isotopes and atomic weight.

This book explores the heavily used element manganese. The author discusses the structure of the manganese atom in clear and simple language, describing in detail the characteristics that give the element its unique qualities. In addition, readers learn why manganese is an essential nutrient in the human diet, as well as how and why the element is used in important industrial processes, especially steelmaking.

Caffeine and nicotine are among the most-consumed drugs in America. This book investigates how these socially acceptable drugs are harmful to consumers and dispels myths about their being safe relative to “harder” illegal drugs such as heroin and cocaine.

Around the world, cervical cancer is the third most common cancer in women. In this clearly written, expert-reviewed volume, readers will learn all about cervical cancer and its main cause, the human papillomavirus (HPV). The book takes a look at individual risk factors as well as how the disease is diagnosed and treated. In addition, there is a detailed discussion of many of the new, advanced modes of detection and treatment that are helping save lives.

Thoroughly researched and reviewed by an expert oncologist, this book looks closely at bone cancer, a disease that affects mostly children and adolescents. The author clearly explains the various types of bone cancer before discussing individual bone cancer risk factors, including genetic factors. She then goes into a detailed discussion of diagnosis and treatment of the disease. The final chapter examines improved surgical techniques that have led to fewer amputations as well as the technological advances in prosthetics that have greatly improved the lives of bone cancer survivors.

This book profiles all aspects of skateboarding today and in the future such as skaters, equipment, competitions, and latest tricks.

Readers will learn about testicular cancer, its types, risk factors, diagnosis, and treatment options. Students will learn about the various tests used in diagnosing the cancer as well as staging. Written in an accessible style, the supportive, upbeat narrative provides an overview of symptoms and treatments and explains how to perform a testicular self-examination. Sidebars share additional information and a rich resource section allows for further reading, research, and outreach.

Wikipedia—the massive, ever-expanding, and entirely free online encyclopedia largely written, edited, and managed by volunteers—has transformed the way people seek information. Many teachers and librarians scorn it, due to its entries'' frequent errors and biases. An even-handed and realistic approach to Wikipedia is presented, acknowledging serious flaws and shortcomings as a research tool, while also explaining the value in it. The book addresses how users can lodge complaints about a Wikipedia entry, how entries are corrected, and how one goes about writing an entry. Finally, the latest thinking of teachers, librarians, and school administrators regarding Wikipedia will be discussed, as will their suggestions for how best to use the online encyclopedia as a legitimate research tool.

The average American consumes an excessive half-pound (227 grams) of meat per day. To satisfy this huge demand for meat, ten billion animals must be raised and slaughtered each year, according to the Farm Animal Rights Movement. This book will examine the meat consumers eat, delving into various issues including: feedlots, slaughterhouses, processing plants, and the possible harm this system may have on animal welfare, human health, and the environment. Readers also learn about what steps are being taken to make eating meat as safe as possible. Being educated about the meat industry empowers people with the knowledge to make wise choices about their health, and support the local farmers and markets that use sustainable methods for their products. Suggestions for how students can become involved in their school and community in promoting smart farming practices and consumerism are also included.

Today, the spread of digital music grants artists unprecedented opportunities to create, market, and distribute their songs. This volume teaches aspiring musicians all of the practical steps to hitting it big in the music world such as setting a practice schedule, booking studio time, distributing their music, and even promoting their bands through social media sites. Engaging sidebars and thorough text make this a must-read for any reader hoping create and market their own tunes.

Give your readers a compelling biography. Known as the Father of Mathematics, Archimedes was the most important mathematician and inventor in ancient Greece. Many of the inventions he created as solutions to problems presented to him by King Hiero II are still in use today. Accomplished in both theoretical and practical mathematics, Archimedes is best known for mechanical inventions like Archimedes'' screw, the Claw of Archimedes, and the heat ray as a weapon, as well as his discoveries using water displacement and buoyancy. His contributions to pure mathematics, such as his approximation of pi, laid the groundwork for modern calculus.

Pennsylvania, the Keystone State, has played a key role in the history of the United States. Written as a perfect resource for middle school research reports, this book discusses the geography, history government, industry, and people that have shaped Pennsylvania’s past and present.

It’s an invaluable skill to be able to deal wisely with different types of non-life-threatening and less serious injuries. This book helps teens to treat cuts, scrapes, bites, stings, bumps, strains, and bruises when they occur. In addition, the book offers good advice for dealing with more serious injury situations such as fractures, burns, frostbite, fainting, hypothermia, and eye injuries—with a stress on getting medical attention from a qualified person as soon as possible.

The Boron group consists of the elements Boron, Aluminum, Gallium, Indium, Thallium. This book covers their properties, histories, and uses, including their roles in medicine and manufacturing.