Sally M. Walker

YALSA Excellence in Nonfiction for Young Adults Finalist One of the Best Books of the Year: Chicago Public Library, School Library Journal, Science Books & Films Bright white teeth. Straight leg bones. Awkwardly contorted arm bones. On a hot summer day in 2005, Dr. Douglas Owsley of the Smithsonian Institution peered into an excavated grave, carefully examining the fragile skeleton that had been buried there for four hundred years. "He was about fifteen...

Solids, liquids, and gases are the three states of matter. But have you ever made matter change from one state to another? Or seen how even invisible matter takes up space? Now you can! Explore matter with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question―How Does Energy Work? Hands-on experiments, interesting photos, and useful diagrams will help you find...

The sun, furnaces, and ovens all make heat. But have you ever watched matter expand when it is heated? Or seen how different kinds of matter conduct heat? Now you can! Explore heat with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question―How Does Energy Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Audisee® eBooks with Audio combine professional narration and text highlighting to engage reluctant readers! Electricity powers lights, computers, and television sets. But have you seen how electricity can make objects stick together? Or make other objects pull apart? Now you can! Explore electricity with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question―How...

Fossils give us a window to the past. Water, sediments, and pressure work together over time to preserve the shape of things that lived long ago. Studying these ancient plants and animals tells us more about our own existence. Have you ever searched for fossils? Unearth some in this book.

In this Early Bird title, readers learn about the physical characteristics, habitat, and behavior of the mosquito.

Antarctica is a land of frozen secrets, with scarcely a handful that have been completely divulged. Join Sally M. Walker as she explores both historical and modern-day scientific expeditions to the continent.

The Mason-Dixon Line's history, replete with property disputes, persecution, and ideological conflicts, traverses our country's history from its founding to today.
We live in a world of boundaries — geographic, scientific, cultural, and religious. One of America's most enduring boundaries is the Mason-Dixon Line, most associated with the divide between the North and the South and the right to freedom for all people. Sibert Medal–winning

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You know that magnets hold pictures on a refrigerator. But have you ever found a magnet's north pole? Or turned an ordinary paper clip into a magnet? Now you can! Explore magnetism with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question―How Does Energy Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

"When Harry Colebourn saw a baby bear at a train station, he knew he could care for it. Harry was a veterinarian. But he was also a soldier in training during World War I. Harry named the bear Winnie, short for Winnipeg, his company's home town, and he brought her along to the military camp in England. Winnie followed Harry everywhere and slept under his cot every night. Before long, she became the regiment's much-loved mascot. But who could care...