Sally M Walker

Recounts the story from World War I in which two towns were leveled and almost two thousand people killed following the collison of two warships in Halifax Harbour and a blizzard that dumped over a foot of snow in the area.

Looks at what matter is, and examines the different states that it can change into.

"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...

Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments.

Audisee® eBooks with Audio combine professional narration and text highlighting to engage reluctant readers! Minerals are fascinating resources that have a variety of uses. A diamond is a mineral that is sought after for its beauty. Salt is a useful mineral that adds flavor. But do you know what minerals are made of? Or how to identify a mineral? Explore the amazing world of minerals in this book.

Looks at what heat is, and examines how it interacts with different types of matter.

Rocks can be made of many different minerals. By looking at rocks closely, we can tell where they were formed and what conditions they were created in. How do we know these things? And how do we tell different types of rocks apart? Learn about ways to research rocks and what they can teach us about our world.

BONUS FEATURE: Enhanced CD featuring photos, maps, and illustrations from the book.
For more than one hundred years, a submarine lay buried beneath the ocean floor near Charleston, South Carolina. This Civil War stealth weapon–the H. L. Hunley–made history in 1864 as the first submarine ever to sink an enemy ship. But something went wrong during that daring mission. The Hunley never returned to port.
Despite decades...

Audisee® eBooks with Audio combine professional narration and text highlighting to engage reluctant readers! What do jar tops and water-bottle lids have in common? Both of them are screws! Screws are simple machines. They help us to do jobs more easily. But don't take our word for it. Put screws to the test 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...

What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes! Inclined planes are simple machines. They help us to do jobs more easily. But don't take our word for it. Put inclined planes to the test 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 Do Simple Machines Work? Hands-on experiments, interesting photos,...