Most Popular Books by Sally M. Walker

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

This book introduces young readers to volcanoes—what they are, how they form, and how they affect people.

Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! 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 BooksTM 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!

Describes William Hammer''s discovery of the first dinosaur remains--190-million-year-old fossils--found atop a mountain in Antarctica. Reprint.

Describes the life of Mary Anning, who discovered many of the best and most complete fossils in nineteenth-century England, yet received little credit for her work.

Focusing on simple machines and how they help us do work in our daily lives, this fun, illustrated and informative text introduces young readers to several basic concepts of physics.

Examines how the Sarcosuchus imperator, the prehistoric crododile, was discovered and how scientists uncovered information about the creature based on fossil evidence.

Describes the 1938 discovery of the coelacanth, a fish previously believed to be extinct, and subsequent research about it.

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

An introduction to fossils describes where and how they form, how they are found, and how they help us learn about ancient plants and animals.

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.

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

Bits of rock, plants, and living creatures—what are they all ingredients for? An award-winning nonfiction author offers the youngest explorers a closer look at nature’s wonders in action. Rocks crumble, battered by ice, wind, and water. Plants wilt, trees fall, and old bones, fins, and feathers break apart. What then? Step by step, Sally M. Walker’s simple narration lets the youngest soil scientists learn how dirt is created, becoming home to animals as well as conduits for nutrients that help to continue the life-giving cycle. Kim Smith’s inviting landscapes capture a range of forest flora and fauna, from mushrooms to pinecones, foxes to chipmunks, birds to snails. A note to parents suggests bringing the learning to life by encouraging questions and observations of the natural world.

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

This companion to Earth Verse: Haiku from the Ground Up soars into space with a perfect fusion of poetry and science, accompanied by breathtaking illustrations. one minuscule speck grows into the universe a mind-boggling birth This stunning meeting of poetic form and luminous artwork transports us out of the bounds of Earth, past a lunar eclipse, beyond the orbiting planets, and into glowing galaxies and twinkling constellations. Sally M. Walker uses her award-winning skill as a writer of nonfiction to explore space through clever haiku, accompanied by narrative explanations of wonders that are out of this world. Illustrator Matthew Trueman imagines the explosive Big Bang and awe-inspiring meteor showers in spectacular views that no telescope could offer. Comprehensive, well-researched back matter further explores such topics as constellations and astronomers, the birth of the universe, stars, the solar system, moons and eclipses, asteroids, meteors, and comets, as well as a glossary of terms, a bibliography, and online resources for readers with an eye to what lies beyond Earth.

Text and pictures describe the Earth''s caves, including their different types, animal life, and how people explore them.

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 inclined planes and wedges and using everyday materials shows how they help make work easier.

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.

Describes the physical characteristics, life cycle, and behavior of sea horse as well as efforts to protect them.