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Do you know the difference between a filly and a colt? How do you file a horse's teeth? Just ask Sarah Mills. She lives on a horse farm and describes the fun and hard work involved with… Read More →

Did you know that baby pigs can run minutes after they're born? Or that pigs aren't really dirty animals? Alisha Eberly could have told you! She lives on a pig farm and talks about the hard… Read More →

Do you know why a 10-ton boat floats but a tiny pebble sinks? Or why a hot air balloon will rise, but when you inflate a balloon it drops to the ground? From Archimedes and Boyle to Pascal… Read More →

Have you ever seen a magician make something disappear and question if anything could really just vanish? Do you know why the periodic table is set up the way it is? From Lavoisier and Joule… Read More →

Have you ever wondered why things drop to the ground instead of float or fly? Or how a heavy satellite can orbit Earth without crashing into it? From Copernicus and Kepler to Galileo and… Read More →

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. Read More →

Do you ever wonder why it seems like you are not moving even though you are standing on a planet that moves through space? How does matter turn into energy? From Lavoisier to Einstein,… Read More →

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… Read More →

A basic overview of the spring season. Color photographs reflect the short, easy-to-understand sentences that improve vocabulary and comprehension. Read More →

A basic overview of the summer season. Color photographs reflect the short, easy-to-understand sentences that improve vocabulary and comprehension. Read More →

Chinese egrets, humpback whales, Chinook salmon, and manatees might seem to have little in common, but they do--they are all close to extinction. They, and several other animals, have… Read More →

Did you know that both electricity and light move in waves, like water does? What does electricity have to do with magnets? From Benjamin Franklin and Charles de Coulomb to Georg Ohm and… Read More →

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… Read More →

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… Read More →

Take a walk through the prairie. This biome of tall grass and open sky is teeming with life. How do the plants and animals of the prairie survive? As you travel through the prairie, watch… Read More →

Have you ever avoided stepping on a jellyfish so that it wouldn't sting you? Uncover why jellyfish sting, how they clone themselves and glow in the dark, and how they hide from predators.… Read More →

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. Read More →

During the formation of the solar system, not all of the materials in the vast could of dust and gas were used. What happened to the remaining ice, metal, and rock? It formed what became… Read More →

Do you know why sea horses cling to underwater objects with their tails? Or did you know that sea horses grow in a pouch on their father's body, not their mother's? In Clinging Sea Horses,… Read More →

In this exciting edition beginning readers can peek into the secret life of the cottontail rabbit. It may be small, but the cottontail is an expert survivor that can live in almost any… Read More →

"Exceptionally handsome photographs light up the pages of this well-designed introduction to jellyfish. A few sentences or fragments, closely tied to the illustrations, appear on each spread. Read More →

Describes, in simple text and full-color illustrations, the physical characteristics, habits, and life cycle of the monarch butterfly. Read More →

At night, ten different species of frogs convene in a marsh. Fireflies light up the scene as Maestro bullfrog raises his baton. The music builds to a crescendo as the night goes on. Just… Read More →