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ผู้เขียน: Sally M. Walker

สนับสนุน
Sally M. Walker is the Sibert Medal–winning author of Secrets of a Civil War Submarine as well as many other nonfiction books. She lives in Illinois.




71 หนังสืออิเล็กทรอนิกส์โดย Sally M. Walker

Sally M. Walker: Frozen Secrets
Studying Antarctica has never been for the fainthearted. "Hereabouts died a very gallant gentleman, Captain L. E. G. Oates of the Inniskilling Dragoons. In March 1912, returning from the Pole, …
EPUB
อังกฤษ
DRM
€12.45
Douglas W. Owsley & Sally M. Walker: Their Skeletons Speak
On July 28, 1996, two young men stumbled upon human bones in the shallow water along the shore of the Columbia River near Kennewick, Washington. Was this an unsolved murder? The remnants of some …
EPUB
อังกฤษ
DRM
€12.49
Sally M. Walker: Written in Bone
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 …
EPUB
อังกฤษ
DRM
€12.49
Sally M. Walker: Druscilla’s Halloween
Did witches always ride brooms? No! In fact, long, long ago, witches crept about on tiptoe. On Halloween, they would scare children and cast spells . . . but always from the ground. No witch ever …
EPUB
อังกฤษ
DRM
€12.51
Sally M. Walker: Ghost Walls
In 1638, John Lewger made a home in the wilderness of the New World, in a place called Maryland. He named his house St. John’s, and for nearly eighty years, it was the center of an ambitious English …
EPUB
อังกฤษ
DRM
€12.48
Sally M. Walker: Figuring Out Fossils
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Fossils give us a window to the past. Water, sediments, and pressure work …
EPUB
อังกฤษ
DRM
€8.68
Sally M. Walker: Marveling at Minerals
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Minerals are fascinating resources that have a variety of uses. A diamond is …
EPUB
อังกฤษ
DRM
€8.73
Sally M. Walker: Researching Rocks
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Rocks can be made of many different minerals. By looking at rocks closely, we …
EPUB
อังกฤษ
DRM
€8.74
Sally M. Walker: Studying Soil
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Soil can be found almost everywhere on Earth. Sand is a soft soil that is …
EPUB
อังกฤษ
DRM
€8.68
Roseann Feldmann & Sally M. Walker: Put Inclined Planes to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do staircases, dump truck beds, and ramps have in common? All of them …
EPUB
อังกฤษ
DRM
€8.75
Roseann Feldmann & Sally M. Walker: Put Levers to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do hammers, wheelbarrows, and brooms have in common? All of them are …
EPUB
อังกฤษ
DRM
€8.68
Roseann Feldmann & Sally M. Walker: Put Pulleys to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do flagpoles and some window blinds have in common? They use pulleys to …
EPUB
อังกฤษ
DRM
€8.74
Roseann Feldmann & Sally M. Walker: Put Screws to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do jar tops and water-bottle lids have in common? Both of them are …
EPUB
อังกฤษ
DRM
€8.72
Roseann Feldmann & Sally M. Walker: Put Wedges to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do a doorstop, a butter knife, and the front of a boat have in common? …
EPUB
อังกฤษ
DRM
€8.72
Roseann Feldmann & Sally M. Walker: Put Wheels and Axles to the Test
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! What do bicycles, doorknobs, and screwdrivers have in common? All of them use …
EPUB
อังกฤษ
DRM
€8.70
Sally M. Walker: Investigating Electricity
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Electricity powers lights, computers, and television sets. But have you seen …
EPUB
อังกฤษ
DRM
€8.74
Sally M. Walker: Investigating Heat
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! The sun, furnaces, and ovens all make heat. But have you ever watched matter …
EPUB
อังกฤษ
DRM
€8.67
Sally M. Walker: Investigating Light
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! The sun, lightbulbs, and flickering fires all bring light to our world. But …
EPUB
อังกฤษ
DRM
€8.76
Sally M. Walker: Investigating Magnetism
Audisee(R) e Books 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 …
EPUB
อังกฤษ
DRM
€8.73
Sally M. Walker: Investigating Matter
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Solids, liquids, and gases are the three states of matter. But have you ever …
EPUB
อังกฤษ
DRM
€8.73
Sally M. Walker: Investigating Sound
Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! People, animals, machines, and wind all make sounds. But have you ever seen …
EPUB
อังกฤษ
DRM
€8.67
Roseann Feldmann & Sally M. Walker: Put Pulleys to the Test
What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulleys are simple machines. They help us to do jobs more easily. But don’t take our word for it. Put …
PDF
อังกฤษ
DRM
€58.07
Sally M. Walker: Investigating Electricity
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 …
PDF
อังกฤษ
DRM
€58.25
Sally M. Walker: Investigating Heat
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 …
PDF
อังกฤษ
DRM
€57.88
Sally M. Walker: Investigating Light
The sun, lightbulbs, and flickering fires all bring light to our world. But have you ever watched light rays moving? Or seen how light rays reflect off objects? Now you can! Explore light with the …
PDF
อังกฤษ
DRM
€58.41
Sally M. Walker: Investigating Magnetism
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 …
PDF
อังกฤษ
DRM
€58.15
Sally M. Walker: Investigating Matter
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 …
PDF
อังกฤษ
DRM
€58.43
Sally M. Walker: Investigating Sound
People, animals, machines, and wind all make sounds. But have you ever seen how sound waves move? Or made a sound wave bounce? Now you can! Explore sound with the fun experiments you’ll find in this …
PDF
อังกฤษ
DRM
€58.29
Roseann Feldmann & Sally M. Walker: Trabajo (Work)
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 …
PDF
สเปน
DRM
€50.53
Sally M. Walker: Heat
Why do some things heat up quickly while others don’t? How can heat cause matter to change form-from solid to liquid to gas and back again? Heat cannot be seen, but it can easily be felt. Looking at …
PDF
อังกฤษ
DRM
€49.95
Sally M. Walker: Matter
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 …
PDF
อังกฤษ
DRM
€49.95
Sally M. Walker: Mystery Fish
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 …
PDF
อังกฤษ
DRM
€48.22
Sally M. Walker: Figuring Out Fossils
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 …
PDF
อังกฤษ
DRM
€58.27
Sally M. Walker: Marveling at Minerals
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 …
PDF
อังกฤษ
DRM
€58.32
Sally M. Walker: Studying Soil
Soil can be found almost everywhere on Earth. Sand is a soft soil that is found in deserts. Loam is soil that is great for growing plants. But how are these types of soils different? And how are they …
PDF
อังกฤษ
DRM
€58.25
Sally M. Walker: Ghost Walls
In 1638, John Lewger made a home in the wilderness of the New World, in a place called Maryland. He named his house St. John’s, and for nearly eighty years, it was the center of an ambitious English …
PDF
อังกฤษ
DRM
€43.35
Sally M. Walker: Bessie Coleman
High in the sky, Bessie Coleman could soar like a bird. She was free-at least until she landed. As a black woman in the 1920s, she wasn’t allowed to learn how to fly. Forced to travel to France to …
PDF
อังกฤษ
DRM
€48.22
Sally M. Walker: La electricidad (Electricity)
¿De dónde viene la electricidad? ¿Cómo hace que funcione una computadora o que una bombilla ilumine? La electricidad es una forma de energía que puede usarse de muchas maneras. Este libro comienza …
PDF
สเปน
DRM
€49.95
Sally M. Walker: La materia (Matter)
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 …
PDF
สเปน
DRM
€49.89
Sally M. Walker: Search for Antarctic Dinosaurs
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 …
PDF
อังกฤษ
DRM
€48.39
Sally M. Walker: Electricity
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 …
PDF
อังกฤษ
DRM
€49.97
Sally M. Walker: Jackie Robinson
The first African American to break the color barrier in modern major league baseball, Jackie Robinson was one of the greatest players of all time. Forced to put up with angry, hateful fans and …
PDF
อังกฤษ
DRM
€48.29
Sally M. Walker: El calor (Heat)
Why do some things heat up quickly while others don’t? How can heat cause matter to change form—from solid to liquid to gas and back again? Heat cannot be seen, but it can easily be felt. Looking at …
PDF
สเปน
DRM
€49.95
Sally M. Walker: Frozen Secrets
Studying Antarctica has never been for the fainthearted. "Hereabouts died a very gallant gentleman, Captain L. E. G. Oates of the Inniskilling Dragoons. In March 1912, returning from the Pole, …
PDF
อังกฤษ
DRM
€43.40
Sally M. Walker: Mosquitoes
In this Early Bird title, readers learn about the physical characteristics, habitat, and behavior of the …
PDF
อังกฤษ
DRM
€49.62
Douglas W. Owsley & Sally M. Walker: Their Skeletons Speak
On July 28, 1996, two young men stumbled upon human bones in the shallow water along the shore of the Columbia River near Kennewick, Washington. Was this an unsolved murder? The remnants of some …
PDF
อังกฤษ
DRM
€47.15
Sally M. Walker: Vowel Family
Meet an unusual family with some very special children: Alan, Ellen, Iris, Otto, and Ursula. Sometimes they’re visited by their very special aunt, Cyndy. As each child is born, the family becomes …
PDF
อังกฤษ
DRM
€38.32
Sally M. Walker: Jackie Robinson
The first African American to break the color barrier in modern major league baseball, Jackie Robinson was one of the greatest players of all time. Forced to put up with angry, hateful fans and …
PDF
สเปน
DRM
€48.30
Sally M. Walker: Written in Bone
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 …
PDF
อังกฤษ
DRM
€46.60
Sally M. Walker: Mary Anning
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 …
PDF
อังกฤษ
DRM
€48.30
Sally M. Walker: Druscilla’s Halloween
Did witches always ride brooms? No! In fact, long, long ago, witches crept about on tiptoe. On Halloween, they would scare children and cast spells . . . but always from the ground. No witch ever …
PDF
อังกฤษ
DRM
€38.30
Roseann Feldmann & Sally M Walker: Inclined Planes and Wedges
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. …
PDF
DRM
€32.55
Roseann Feldmann & Sally M. Walker: Levers
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 …
PDF
อังกฤษ
DRM
€50.02
Roseann Feldmann & Sally M Walker: Pulleys
How does a pulley work? What is it? Colorful diagrams and fun-to-do experiments help you explore the many ways this simple machine can help make work easier and faster. …
PDF
DRM
€32.57
Roseann Feldmann & Sally M Walker: Screws
We”ve all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple machine …
PDF
DRM
€32.52
Roseann Feldmann & Sally M. Walker: Wheels and Axles
Of the six simple machines, the wheel and axle is probably the most recognized. But how does it help you work? Simple and fun experiments illustrate the basic concepts explained in the text to show …
PDF
อังกฤษ
DRM
€49.98
Roseann Feldmann & Sally M. Walker: Work
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 …
PDF
อังกฤษ
DRM
€49.94
Sally M Walker: La luz (Light)
Where does light come from? What do colors have to do with light? Light is a form of energy. Life on Earth is made possible because light from the sun carries heat to the earth. This book explores th …
PDF
DRM
€32.56
Roseann Feldmann & Sally M. Walker: Put Inclined Planes to the Test
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 …
PDF
อังกฤษ
DRM
€58.41
Roseann Feldmann & Sally M. Walker: Put Wedges to the Test
What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedges! Wedges are simple machines. They help us to do jobs more easily. But don’t take our word for it. …
PDF
อังกฤษ
DRM
€58.26
Sally M Walker: Opossums
In this Early Bird title, readers learn about the physical characteristics, habitat, and behavior of the opossum. …
PDF
DRM
€32.54
Sally M. Walker: Researching Rocks
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 …
PDF
อังกฤษ
DRM
€58.43
Roseann Feldmann & Sally M. Walker: Put Levers to the Test
What do hammers, wheelbarrows, and brooms have in common? All of them are levers! Levers are simple machines. They help us to do jobs more easily. But don’t take our word for it. Put levers to the …
PDF
อังกฤษ
DRM
€58.15
Roseann Feldmann & Sally M. Walker: Put Wheels and Axles to the Test
What do bicycles, doorknobs, and screwdrivers have in common? All of them use wheels and axles to perform work! Wheels and axles are simple machines. They help us to do jobs more easily. But don’t …
PDF
อังกฤษ
DRM
€58.15
Roseann Feldmann & Sally M. Walker: Put Screws to the Test
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 …
PDF
อังกฤษ
DRM
€58.36
Sally M. Walker: Shipwreck Search
What a discovery! Deep under the Atlantic Ocean, divers found a shipwreck like no other. It was the H. L. Hunley, a submarine that had sunk during the Civil War! A team of scientists from all over …
PDF
อังกฤษ
DRM
€48.34
Sally M Walker: Light
Where does light come from? What do colors have to do with light? Light is a form of energy. Life on Earth is made possible because light from the sun carries heat to the earth. This book explores th …
PDF
DRM
€32.57
Sally M Walker: Volcanoes
This book introduces young readers to volcanoes—what they are, how they form, and how they affect people. …
PDF
DRM
€32.56
Sally M Walker: SuperCroc Found
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 …
PDF
DRM
€30.98
Sally M. Walker: La electricidad (Electricity)
¿De dónde viene la electricidad? ¿Cómo hace que funcione una computadora o que una bombilla ilumine? La electricidad es una forma de energía que puede usarse de muchas maneras. Este libro comienza …
EPUB
สเปน
DRM
€12.48
Sally M. Walker: El magnetismo (Magnetism)
¿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, …
EPUB
สเปน
DRM
€12.39