Best Selling Books by Sally M. Walker

Rocks, ice, and snow. That is all Dr. William Hammer and his crew can see when they look at the land around them on Earth’s coldest continent. But on top of a mountain, the scientists discover a 190-million-year-old fossil. It is the remains of the first dinosaur found on mainland Antarctica. Learn more about the hunt for fossils in Antarctica and what life might have been like there millions of years ago.

Describes the behavior, habitat, and life cycle of dolphins.

Rolling boulders here and there . . . In the launch of her first board-book series, an award-winning nonfiction author brings the youngest explorers close to nature’s wonders in action. Mighty mountains reach up high, until craggy cliffs tumble and boulders settle everywhere. But how do big, jagged rocks turn into the soft sand we love at the beach? Step by step, Sally M. Walker’s simple, scientifically accurate narration lets the youngest geologists learn how rocks weather over time, transforming from cobbles to pebbles to the tiniest grains of sand. Kim Smith’s lush landscapes capture a wide range of fauna over geologic time, from dinosaurs and mammoths to bunnies and gulls. A note to parents suggests bringing the learning to life by encouraging questions and observations of the natural world.

In 1938, off the coast of South Africa, a woman found a strange blue fish with four stubby fins, pointed spines, and a funny looking tail—it was a coelacanth! Until that very moment, the world had believed that coelacanths were extinct. Suddenly, scientists around the world were excited—could more of these unusual creatures be found and studied? Discover how scientists worked to solve the mystery of these extraordinary fish.

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 BooksTM collection, this series sheds light on a key science question—How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

In the early 1800s, very few girls were allowed to learn about science. Yet Mary Anning spent her life hunting for fossils on the cliffs of Lyme Regis, England. When she was still a girl, she and her brother found an amazing ichthyosaur skeleton--but that was only the beginning. Author Sally M. Walker uses letters, journal entries, and academic papers to reveal the true story of a woman who followed her own path. Detailed, scientifically accurate artwork by Phyllis V. Saroff offers a vivid portrait of Mary Anning and the fossils she loved.

Describes the physical characteristics, life cycle, behavior, and conservation of manatees, also known as sea cows.

The award-winning author of Secrets of a Civil War Submarine traces the history of the Mason-Dixon Line as reflected by family feuds, exploration, scientific advancement and the cultural conflicts between America''s northern and southern states.

Describes the basic physics behind work and simple machinery.

Uses everyday examples to show how wheels and axles function as simple machines.

Explains what magnets and magnetism are, what objects are or are not magnetic, magnetic poles, and types of magnets, and shows related activities.

The worst maritime disaster in American history wasn''t the Titanic. It was the steamboat Sultana on the Mississippi River and it could have been prevented.

Do you know what a lever is? How can a lever help you? Through simple experiments and clear explanations, understand how this simple machine functions and how it can make the work that you do easier.

Looks at screws and uses everyday materials to show how they are simple machines that help make work easier.

The true story of the real bear who inspired Winnie-the-Pooh

Introduces glaciers, including how they were formed, how they move, and their importance to the geography and ecology of the world, and discusses ways that we can reduce the deterioration of the glaciers before it is too late.

What is an inclined plane? How do you use a wedge? Using easy-to-understand examples and fun-to-do experiments, discover how these two simple machines work and make the work that you do easier.

Uses everyday examples to illustrate how pulleys function as simple machines.

"Hits the mark."—Kirkus An engaging middle-grade nonfiction narrative of the American Indian soldiers who bravely fought in the Civil War from Sibert Award-winning author Sally M. Walker. More than 20,000 American Indians served in the Civil War, yet their stories have often been left out of the history books. In Deadly Aim, Sally M. Walker explores the extraordinary lives of Michigan’s Anishinaabe sharpshooters. These brave soldiers served with honor and heroism in the line of duty, despite enduring broken treaties, loss of tribal lands, and racism. Filled with fascinating archival photographs, maps, and diagrams, this book offers gripping firsthand accounts from the frontlines. You’ll learn about Company K, the elite band of sharpshooters, and Daniel Mwakewenah, the chief who killed more than 32 rebels in a single battle despite being gravely wounded. Walker celebrates the lives of the soldiers whose stories have been left in the margins of history for too long with extensive research and consultation with the Repatriation Department for the Little Traverse Bay Bands of Odawa Indians, the Eyaawing Museum and Cultural Center, and the Ziibiwing Center of Anishinaabe Culture and Lifeways.

Combining science with poetry, this collection of haiku extols the wonder of trees through poems that engage with every season and stage of the life cycle, from seed to photosynthesis.

Examines the physical features, processes, and many different species of plants and animals that make up the ecosystem of the largest estuary in the United States, the Chesapeake Bay.

110 million years ago, a lush river flowed through the heart of what is now a desert in Africa. Lurking in the depths of the river, a humungous monster waited for its prey to come to the river’s edge to drink...and to die. More than 40 feet long, this giant ancestor of the crocodile stalked and killed dinosaurs. In 1997, dinosaur hunter Paul Sereno discovered the enormous reptile fossil named SuperCroc. Learn how modern science uncovers the ancient past in this thrilling account of a prehistoric predator.

The author describes how the scientists searched for the missing submarine the H L Hunley, and how they found it and raised it from the sea floor. She also describes the following investigation of the vessel and findings.

This Early Bird Earth Science title explains what reefs are and how they form. The book discusses coral reefs and fossil reefs, and includes a description of the damage caused to reefs by human activity.

Introduces earthquakes, discussing how, why, and where they occur; how they are measured; their effects; and how to prepare for them.

Exploring space through clever haiku, this beautiful combination of poetic form and luminous artwork is accompanied by narrative explanations of wonders that are out of this world.

Describes what minerals are and discusses different types, where they are found, and how they are used.

A collection of haiku poems celebrates the planet Earth, including such topics as rocks, earthquakes, fossils, volcanoes, and the water cycle. Includes Earth sciences fact pages.

Describes the physical characteristics, behavior, life cycle, and endangered status of rays.

An introduction to the physical characteristics, behavior, habitats, and life cycle of sea horses.

Describes the physical characteristics, life cycle, behavior, and conservation of rhinos.

6 PACK, PART OF LIBROS DE ENERGIA PARA MADRUGADORES SET (EARLY BIRD ENERGY)

What do hammers, wheelbarrows, and brooms have in common? All of them use levers!

What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedges!

What do bicycles, doorknobs, and screwdrivers have in common? All of them use wheels and axles to perform work!

What do jar tops and water-bottle lids have in common? Both of them are screws!

What do flagpoles and some window blinds have in common? They use pulleys to perform work!

The British are coming! The American Revolution is being fought in the hills around Letty Wright’s family’s farm, and the Wrights must flee to safety. There is no time for Letty to bring Solomon the gander. Letty hopes the British don’t hurt Solomon, but hungry soldiers aren’t known for their kindness. Eight-year-old Letty tries the only thing she can think of to save him—and is as surprised as the other colonists when it works. Based on a remarkable, true story, this unusual tale will linger in the minds of all who read it.