Most Popular Books by Christine Petersen

What are the biggest living things on Earth? Did you guess whales or elephants? The winner is not an animal at all. It is a kind of tree called the coast redwood. Using hands on activities, young readers will be introduced to the amazing world of trees.

Flowers look like pretty decorations. Did you know that they also have an important job? Flowers make seeds. Inside each seed is a tiny new plant. Using hands on activities, young readers will be introduced to the amazing world of flowers.

Where does food come from? How many plants do we eat? Using hands on activities, young readers will develop critical thinking skills as they gain a better understanding of the plants we eat.

This fascinating book explores the life of a colonial printer and his importance to the community, as well as everyday life, responsibilities, and social practices during that time.

In this series, readers discover the roles and interconnections of such diverse members of the colonial community as apothecaries and farmers and many more. Each title explores aspects of their everyday life, their responsibilities, and their social life as colonial Americans. Through lively and engaging text, interesting sidebars, recipes, and activities, students will travel back in time to life in colonial America.

This fascinating book explores the life of a colonial surveyor and his importance to the community, as well as everyday life, responsibilities, and social practices during that time.

Readers will travel back in time to life in colonial America and explore the everyday life and responsibilities of the apothecary.

Provides comprehensive information on the interrelationships of the natural world, environmental problems both natural and man-made, the relative risks associated with these problems, and solutions for resolving and/or preventing them.

Provides comprehensive information in Earth''s food supply and its protection, the interrelationships of the natural world, environmental problems both natural and man-made, the relative risks associated with these problems, and solutions for resolving and

Provides comprehensive information on pollution, the interrelationships of the natural world, environmental problems both natural and man-made, the relative risks associated with these problems, and solutions for resolving and/or preventing them.

Provides comprehensive information on Earth''s climate changes. An exploration of case studies, ancient Earth''s climate, it''s impact on Arctic regions, and recent studies are explored.

Ideal for today''s young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, the new A True Book series is the definitive nonfiction series for elementary school readers.

A guide to the history of and controversies sorrounding the practice of vaccination.

Discover Great National Parks: Yosemite is an excellent non-fiction book for young learners. It features information of what Yosemite was like before it was a park, how it became a national park, and most of all, the Grizzly Giant, a 30-story tall and thousands of years old Sequoia tree, along with the wildlife that lives there, including the endangered bighorn sheep. Famous visitors to Yosemite are John Muir and President Theodore Roosevelt. See beautiful photographs, both current and historical, of the land, fun facts about the park and learn more through the chapter notes, suggested readings, and glossary.

This fascinating book explores the life of a colonial tailor and his importance to the community, as well as everyday life, responsibilities, and social practices during that time.

This book explores the life of a colonial glassblower and his importance to the community, as well as everyday life, responsibilities, and social practices during that time

Who makes up the Judicial Branch? How are members of the Judicial Branch appointed? Find the answers to these questions and more in this title. Primary sources with accompanying questions, multiple prompts, Important Dates section, index, and glossary also included. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.

This book explores the life of a colonial tanner and his importance to the community, as well as everyday life, responsibilities, and social practices during that time

Who makes up the House of Representatives and the Senate? What kind of power does Congress have? Find the answers to these questions and more in this title. Primary sources with accompanying questions, multiple prompts, Important Dates section, index, and glossary also included. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.

A wheelwright�s main job was to make wooden wheels for horse-drawn carriages. In this book, discover how people were kept aloft on their carriages and rolling through colonial times. This historical volume chronicles the formative years of the United States through the activities and occupations of its community members. In this book, explore the everyday life, responsibilities, social life as a colonial wheelwright, and the affect of the profession on colonial America. Hands-on activities and recipes, sidebars detailing the history and evolution of the profession and key social studies words defined in the glossary.

South Dakota is filled with beautiful views, from the Badlands To The Black Hills. it carries with it a sense of history that began with the Paleo-Indians 11,000 years ago. This colorful book takes readers on a journey of the history, culture, economy, and government of South Dakota, from the past To The present. Unique sidebars and timelines support the narrative.

This fascinating book explores the life of a colonial miller and his importance to the community, as well as everyday life, responsibilities, and social practices during that time.

Discover Rocks introduces readers to what rocks are and how they form. Real-world examples bring to life igneous, sedimentary, and metamorphic rock. Full-color photographs will draw in readers while the easy-to-read text breaks down complex concepts. A diagram of the rock cycle ties everything together and a geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Dig into the world of geology with the Rock On! series! Rockin'' Rocks introduces readers to what rocks are and how they form. Chapters build concepts from the ground up, from atoms, elements, and minerals to Earth''s layers, tectonic plates, and the three classes of rock. Real-world examples like the Grand Canyon, Devils Tower, and Arches National Park bring to life igneous, sedimentary, and metamorphic rock. Full-color photographs will draw in readers while the easy-to-read text breaks down complex concepts. A colorful diagram of the rock cycle ties everything together while an at-home experiment provides the opportunity for hands-on experience. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.

This title introduces young readers to turquoise, the gemstone that?s name is French for ?Turkish?! Learn how turquoise is formed and where it is found. Historic and modern mining methods are detailed. The use of turquoise as a gemstone is examined including different colors and cuts. See how artisans and lapidaries create beautiful and useful jewelry with this mineral. Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of ABDO Publishing Company.

Dig into the world of geology with the Rock On! series! Groovy Gems introduces readers to what gems are and how they form, including mineral gems and organic gems. Chapters discuss crystal systems, imitation and synthetic gems, cultured pearls, how gems are used, and their importance throughout history. Sidebars introduce birthstones, precious metals, and conflict diamonds. Full-color photographs of brilliant diamonds, pearls, geodes, star sapphires, and more will draw in readers while the easy-to-read text breaks down complex concepts. A colorful world map of where gems are found spreads across two pages and an at-home experiment provides the opportunity for hands-on experience. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.

This title introduces young readers to silver, the most conductive metal on earth! Learn how silver is formed and where it is found. Historic and modern mining methods are detailed. The many uses of silver are examined, from industrial applications in products such as computers and electric switches to medicines and antiseptic clothing! See how artisans such as silversmiths and lapidaries use silver to create beautiful and useful jewelry and wares. Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of ABDO Publishing Company.

This title introduces young readers to diamonds, the hardest natural substance on Earth! ?Learn how diamonds are formed and where they are found. ?Historical and modern mining methods are detailed, and topics such as conflict diamonds are covered. ?The many uses of diamonds are examined, from industrial applications in products such as diamond saws and dentists'' drills to engagement rings and birthstone jewelry. ?See how artisans such as diamond cutters and lapidaries use diamonds to create beautiful and useful jewelry by paying special attention to the four C''s, carat, cut, clarity, and color. ?Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. ?Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. ?Aligned to Common Core Standards and correlated to state standards. ?Checkerboard Library is an imprint of ABDO Publishing Company.

More commonly known as u0091Eu0092, ecstasy or MDMA is a psychoactive drug which in users produces increased empathy, euphoria, and an altered sense of time. Ecstasy is illegal in most of the world, however studies continue to pursue ecstasy and its help in the treatment of PTSD. As an uncontrolled substance however, this drug is dangerous and over time can alter brain chemistry, increase depression and anxiety, and effect the nervous system. This timely book exposes readers to personal stories from teens coping with ecstasy abuse. It also provides warning signs, treatment options, and most importantly, solutions. Sidebars, a relevant glossary of terms, current websites, and science content are included in this detailed look into the teen issue of ecstasy use and abuse.

Unearth Fossils introduces readers to the different types of fossils and how they form. Learn about key fossil finds, scientists who made important discoveries and contributions to the study of fossils, and how we use fossils today in the form of fossil fuels. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index.Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

In Environment at Risk, scientific principles, concepts, and methodologies in environmental science are explored and explained. Students will be led on a journey to understand the interrelationships of the natural world, identify and analyze environmental problems both natural and human-made, evaluate the relative risks associated with these problems, and examine alternative solutions for resolving or preventing them.

Examine Minerals introduces readers to what minerals are, how they form, and how we use them today. Learn how to identify minerals, including color, luster, streak, fracture, hardness, specific gravity, magnetism, and fluorescence. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index. Aligned to Common Core Standards and correlated to state standards.Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Inhalants are intoxicative drugs whose gases or vapors are breathed in and cause a short-lived high that produces intoxication and psychoactive effects. Often called huffing, this dangerous drug abuse kills brain cells and can cause death. Within this book learn about the long and short-term effects of inhalants which include physical addiction, emotional addiction, expense, health problems, arrest for possession and for other drug-related crime and overdose. Personal stories of teens who used drugs and the realities they faced unfold along with advice on how to deal with peer pressure when choosing to say no. There is also an entire chapter devoted to getting help. With so many reasons to avoid drug addiction, one thing is clear: Drug use is not something one should ever get involved with.

This title introduces young readers to gold, the metal that can stay shiny for thousands of years. ?Learn how gold is formed and where it is found. ?Historical and modern mining methods are detailed, including the discovery of kimberlite pipes. ?The many uses of gold are examined, from industrial applications in products such as electronics to illuminated manuscripts and space telescopes. ?See how artisans such as goldsmiths and lapidaries use gold to create beautiful and useful jewelry. ?Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. ?Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. ?Aligned to Common Core Standards and correlated to state standards. ?Checkerboard Library is an imprint of ABDO Publishing Company.

With the popularity of Burning Man and other festivals where drug use is a known, it''s difficult to insist that teens see drugs as dangerous, but many drugs are. This book doesn''t preach; it uses real life stories of teens who have used LSD and other hallucinogens to explain what can and does happen through drug use. Readers will learn the symptoms of addiction, including the physical, emotional, and social damage that can arise from substance abuse. Alarming facts and statistics point out how prevalent hallucinogenic abuse can be among teens, and how to steer clear of falling prey. Readers are given practical advice on how to say no, and an entire chapter is dedicated to getting help.

Dig into the world of geology with the Rock On! series! Fantastic Fossils introduces readers to the different types of fossils and how they form, from petrifaction and carbonization to molds, impressions, and amber. Chapters discuss key fossils finds, such as perfectly preserved mammoths and the dinosaur-like, feathered archaeopteryx. Readers will be introduced to scientists who made important discoveries and contributions to the study of fossils. They will also learn about the way we use fossils today, in the form of fossil fuels. A colorful geologic time scale spreads across two pages and an at-home experiment provides the opportunity for hands-on experience. Full-color photographs will draw in the reader while easy-to-read text breaks down complex concepts. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.

Dig into the world of geology with the Rock On! series! Super Soils introduces readers to what makes up soil, from humus and plants and animals to water and air. Chapters discuss how weathering, erosion, parent material, decay, bacteria, organic matter, climate, and time contribute to soil formation. Soil engineering comes to life with a real-world example, the Leaning Tower of Pisa. Easy-to-read text and helpful diagrams break down complex concepts, such as soil horizons. Readers will also learn about composting and the importance of conservation of this vital natural resource. And, an at-home experiment provides the opportunity for hands-on experience. Full-color photographs, glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.

Dig into the world of geology with the Rock On! series! Mighty Minerals introduces readers to what minerals are, how they form, and how we use them today. Chapters discuss how to identify minerals, including color, luster, streak, fracture, hardness, specific gravity, magnetism, and fluorescence. A colorful diagram of the rock cycle furthers understanding of mineral formation and an at-home experiment provides the opportunity for hands-on experience. Full-color photographs will draw in readers while the easy-to-read text and helpful diagrams break down complex concepts. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.

Mammals have spread to almost every habitat on the planet and can be found on land, in the sea, and in the air. What do these animals have in common with each other and us? How do they adapt to their environments? Which mammals live near you? Scientists answer such questions through observation and experimentation—and so can you. You can create a system to classify mammal groups, compare and contrast other mammals’ body systems with your own, discover how mammals overcome seasonal challenges such as snow, set up an observation station to watch the mammals in your neighborhood, and conduct a scientific census to determine their numbers. Whether for a school science fair or just for fun, these projects will help you better understand the diverse, magnificent creatures that are our closest relatives in the animal kingdom.

Study Soils introduces readers to what makes up soil, from humus and plants and animals to water and air. Learn how weathering, erosion, parent material, decay, bacteria, organic matter, climate, and time contribute to soil formation. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.