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What is a Horse?

Bobbie Kalman, Heather Levigne (authors)

Publisher: Crabtree Publishing Company ISBN: 9780778789994

Children love horses! Today, there are more than 300 different breeds around the world! What is a Horse? explores the family tree of horses and their equine relatives including their physiology, feeding habits, the birth of a foal, "horse sense", and horses in the wild.

What's the Plan?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798033

It is essential that scientists design a plan to ensure their experiments are conducted accurately and safely. Readers will learn how to gather materials, and create a step-by-step procedure to test their hypothesis. Readers will become familiar with controls and variables in a scientific setting.

What's the Problem?

Kylie Burns (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798040

Science engages a curious mind. Questions can come from practically anywhere. Readers will learn why scientists ask questions and how to develop meaningful questions to help guide their scientific experiments.

What Just Happened?

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798002

Science never stops-even when the experiment is complete. Now is the time to make sense of your data. This title teaches young scientists how to analyze, interpret, and communicate the results of their data.

What's Going On?

Kylie Burns (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798019

Sharpen your pencils and put on your goggles! It's time to see science in action! This book helps readers hone their observation and recording skills during an experiment. Students will learn how to effectively collect and record data in a journal, as well as organizing data using graphs, charts, and diagrams.

What's Going to Happen?

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798026

Sometimes a hunch isn't enough. Learn how scientists make educated guesses called hypotheses to test their theories. A hypothesis is the foundation of the scientific method. Readers will learn how to construct a measurable and focused hypothesis to test in an experiment.

What Do We Know Now?

Robin Johnson (author)

Publisher: Crabtree Publishing Company ISBN: 9780778797999

Science was meant to be shared with others. Scientists must now determine whether or not the data supports their hypothesis. This book illustrates fun and interesting ways in which to report your results, from a science fair demonstration to a written report. Readers are also encouraged to use their results as a springboard for further experimentation.

The Exciting Endocrine System

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789048

Squirt may be a tiny gland, but young readers will thrill to learn just how important he is. Come inside to see the powerful effects of the pineal, pituitary, thyroid, and adrenal glands. The roles of the hypothalamus and pancreas will also be explored along with the function of hormones.

The Remarkable Respiratory System

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789062

Huff & Puff, our Body Buddy lung twins make learning about the lungs and respiratory system exciting! Readers are introduced to the bronchial tree. They will discover how the diaphragm and intercostals muscles help the lungs fill and empty. Easy-to-follow text will guide young readers through this detailed topic, helping to ensure absorption of the material.

The Mighty Muscular and Skeletal Systems

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789055

Struts and Flex, our muscle and bone Body Buddies give the inside scoop on this active partnership. Readers are introduced to the structure and function of bones and muscles. They will discover how different joints enable different kinds of movement and how muscles must work in teams.

What Is the Theory of Plate Tectonics?

Craig Saunders (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195319

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.

The Dynamic Digestive System

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789031

Join Gurgle, our Body Buddy stomach and learn all about what happens to food after it is swallowed. Readers will learn about their esophagus, stomach, liver, small and large intestine.

The Amazing Circulatory System

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789017

Join our Body Buddy Ticker as he explores the workings of the heart and circulatory system. Children will learn how the amazing heart muscle works, and will discover how blood vessels transport life-giving oxygen to the cells and carry away carbon dioxide. Colorful layouts make learning about this complex topic easy and fun.

The Astounding Nervous System

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789024

Join our brain Body Buddy Cognos and learn all about how the brain and nervous system work. Children will discover the location of the major parts of the brain and gain understanding of their various functions. Involved topics like nerve signals are explained in an entertaining and straightforward way for young readers.

What Is Atomic Theory?

Adam Mclean (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195265

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.

What Is the Theory of Evolution?

Robert Walker (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195272

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.

What Is Germ Theory?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195302

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.

What Is Cell Theory?

Marina Cohen (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195289

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.

What Are Newton's Laws of Motion?

Denyse O'Leary (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195296

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 St. Lawrence: River Route to the Great Lakes

Lynn Peppas (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791690

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: River in the Sand

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791676

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 Mississippi: America's Mighty River

Robin Johnson (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791669

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.

Photosynthesis: Changing Sunlight into Food

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427166517

Photosynthesis is the basis for all life on Earth! This exciting and sensitive book looks at how plants take a gas that is poisonous to people and animals and, with the help of the Sun, create food and oxygen for all creatures. Children will delight at learning about the little "chloroplast" factories inside the leaves of plants and become aware of how important plants really are! Children of all ages will love this book!

Metamorphosis: Changing Bodies

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427166500

Children will delight to learn about how the bodies of different animals, including frogs, butterflies, and beetles, change as these animals go through their life cycles. Metamorphosis: Changing Bodies explains metamorphosis in a step-by-step format that is accompanied by beautiful pictures. Both complete and incomplete metamorphosis are defined and explained.

The Water Cycle

Rebecca Sjonger Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427166531

All life on Earth depends on the water cycle! This fascinating book this introduces children to this important cycle using a clear, step-by step approach. Kids will learn how evaporation, condensation, precipitation, and run-off work together to move water from the ground to the air and then back down again. Full-color diagrams and beautiful images help make the water cycle come alive for kids.