Books with author Janey Levy

Krypton (Kr), a noble gas, is sometimes known as the hidden gas because it was so hard to isolate from the air. Scientists, however, have discovered that krypton is useful in many ways. It is used in lighting, lasers, and medicine. It is used to detect leaks in sealed containers and to measure X-rays. Scientists have even used it to determine the age of water locked away in spaces deep underground! In this book, students learn about the periodic law, krypton’s discovery, and krypton’s relationship to the other noble gases. They will explore its atomic structure, how krypton is obtained through fractional distillation, how it forms compounds, and how the gas is used in businesses and industries, including in fluorescent lights, vehicle headlights, neon signs, windows, and insulation.

"Plants are the starting point in most food chains. But that's not true of one group of plants-carnivorous plants. Bladderworts belong to that group of plants. And they have a unique method for capturing prey: a vacuum trap. Readers of this fascinating volume will discover intriguing facts about this unusual plant, including where it's found, how its trap works, and how fast the trap works. Age-appropriate text addresses important elementary science concepts, while colorful images enliven the text. Photo captions, fact boxes, and a graphic organizer enrich the main text"--

Who doesn't enjoy a beautiful flower garden, an orchard filled with fruit trees, or a lush green forest? A surprising number of plants, even gorgeous and inviting ones, can be lethal. Readers of this engaging volume learn about some of Earth's deadliest plants, several of which are commonly found in gardens. They include the oleander, rhododendrons, rhubarb, castor bean plants, and deadly nightshade. Age-appropriate text highlights important elementary science concepts supported by colorful photographs. Captions, fact boxes, and a graphic organizer enrich the main text.

"Hundreds of years ago, the Inca of South America created an influential and lasting culture. They constructed miles of highways and bridges. Perhaps most fascinating is the mountain city of Macchu Pichu with its many technological marvels. Even today, experts are still amazed by the builders' techniques and accomplishments. Inside this volume, educational and engaging text is paired with illustrations and color photographs. Readers will delight in learning about this rare mountain treasure."--Publisher's website.

The native peoples of the northwest coast are often known by the totem poles they create. Made from cedar trees, totem poles were painted bright colors and featured both animal and human forms. Why these amazing pieces of art are created is just one of the interesting details readers will learn about the many native peoples who lived in modern-day Alaska, Oregon, Washington, northern California, and British Columbia. The main content features many social studies curriculum topics, including customs, clothing, and spirituality of native peoples. Full-color photographs and historical images enhance each chapter as specific native groups are highlighted throughout the book.

The Human Genome Project was a groundbreaking, life-altering development of the late 20th century and a major evolution in science and medicine. Readers of this remarkable volume will follow the scientists of the international, collaborative research program as they map the human genome. They'll learn about the science behind the project as well as the scientific and medical possibilities opened by it. Vivid photographs support the fascinating text, and sidebars, fact boxes, and captions enrich your reader's experience.

Plants grow in the ground, and their roots absorb from the soil the water and nutrients the plants need to grow, right? You'd be surprised. Some plants seem to possess secret powers. They don't grow in the ground. They grow on a host plant, but they're not parasites. They get the water and nutrients they need from rain, debris on the host plant, and even the air. These amazing plants are called epiphytes, or air plants. Readers of this fun and engaging book will learn about these fantastic plants and how and where they live. Vivid photographs and facts that support important elementary science concepts fill this fascinating volume.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theoriesand the discoveries that prove and disprove themare highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed North America, some more than 13,000 years ago!