Best Selling Books by Sally M. Walker

Describes the hydrologic cycle and its importance to life on Earth.

On December 6, 1917, two ships collided in Halifax Harbour. One ship was loaded top to bottom with munitions and one held relief supplies, both intended for wartorn Europe. The resulting blast flattened two towns, Halifax and Dartmouth, and killed nearly 2,000 people. As if that wasn''t devastating enough, a blizzard hit the next day, dumping more than a foot of snow on the area and paralyzing much-needed relief efforts. Fascinating, edge-of-your-seat storytelling based on original source material conveys this harrowing account of tragedy and recovery. This thoroughly-researched and documented book can be worked into multiple aspects of the common core curriculum.

Describes a sea horse living in the coral reefs of the central Philippines, its habitat, life cycle, food, and how it protects itself from predators.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

Learn about pulleys, what they are, what they do, and how they work.

Learns about the screw, the physics behind it as well as its applications.

Where does electricity come from? How does it make a computer run or a light bulb shine? Electricity is a form of energy that can be used in many ways. Starting with the tiny particles that make up atoms electrons, protons, and neutrons this book highlights the basics of how electricity works and furthers understanding through a series of easy-to-do experiments.

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

¿Qué son los imanes? ¿Por qué se pueden encontrar imanes dentro de máquinas como televisores, radios y teléfonos? ¿Qué tienen que ver los átomos y las partículas diminutas que los conforman—protones, neutrones y electrones—con el magnetismo? Los imanes proporcionan fuerzas que tienen la capacidad de empujar o atraer otros objetos. Los experimentos fáciles de poner en práctica ayudan a los lectores a analizar los principios centrales del magnetismo. What are magnets? Why are magnets found inside machines such as televisions, radios, and telephones? What do atoms and the tiny particles that make up atoms—protons, neutrons, and electrons—have to do with magnetism? Magnets provide forces that have the power to push or pull other objects. Easy-to-do experiments help readers explore the central principles of magnetism.

Each of these libraries of six delightful titles was created especially to help children understand and appreciate the beauty of the natural world. Each book, which has been written and illustrated by award-winning authors and artists, tells the story of an animal in its natural environment. Accurate in detail and rich in storytelling tradition, these books are perfect for giving and collecting. Authenticated by the Smithsonian Institution’s National Museum of Natural History in Washington, D.C.

Keep kids curious with this exciting first adventure in the STEAM Street Kids early-reader series, following Cora on a day of fun, science-based adventures at the beach. Pack your beach bag and join Cora and Gran for some discoveries by the shore! Test sand to figure out what kind makes the best castle. Find out how sea animals survive low tide. Investigate sea stars in a tide pool--and rescue them from drying out. And what tops off a day at the beach better than a big ice cream sundae? The welcoming text by nonfiction author extraordinaire Sally M. Walker, ideal for early readers moving into chapter books, is followed by back matter expounding on the three STEAM concepts introduced and inviting kids to experiment with their own sandcastle-building activity.

What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes!

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

This book explains how earthquakes happen and what scientists are doing to try to predict future earthquakes.

When British troops near their farm, Letty Wright and her family must escape and leave all their possessions behind including Letty''s pet goose Solomon, and Letty hastily writes a note imploring the soldier''s to spare Solomon''s life. Reprint.

Describes the types of sedimentary rocks, and the processes that lead to their formation.

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