Using the HTML5 Filesystem API

Imagine that you're walking on the moon. What is it like? For thousands of years people looked up at the moon and wondered about it. Now we know what the moon is like. There is no air on the moon and nothing grows, but there are towering mountains and deep craters--and much more! Colder than the desert, the hotter than the desert, the moon is an amazing place to explore.

Ka-choo! Brrr. Yawnnnn.Have you ever wondered what makes you sneeze when you're in a dusty room? Or shiver when you get out of the bathtub? Or yawn when you're tired? All of these actions are reflexes

Did you know that lightning bolts can be over a mile long? Or that they may come from clouds that are ten miles high? Storms can be scary, but not if you know what causes them. Before the next thunde

Did you know that a barn owl has one ear higher than the other? This helps it find squeaking mice that humans can't hear. Baby opossum hang on to their mother's fur for safety. Read and find out more

Chirp! Chirp! Chirp! That's the sound crickets make. You've probably heard them chirp on a summer evening. But did you know that they make their chirping sounds by rubbing their wings together, and

Have you ever dreamed of being an astronaut? Wondered what it might be like to see the sun set sixteen times in one day?Open this book and be transported on an information-packed voyage aboard the sp

Moonlight is really sunlight!Did you know that the moon doesn't make its own light? Instead, it receives light from the sun and reflects it to us on the Earth. Read and find out about how the sun, the stars and light bulbs make light so we can see.Did you know that moonlight is really sunlight? The moon can't make its own light, so it receives light from the sun and then sends it to us here on the Earth.Any child who's ever wondered about the fascinating properties of light will want to read this classic science title. Readers will even learn how fast light can travel: from the moon to the Earth in less than three seconds! Veteran science author Franklyn M. Branley's lively text and Stacey Schuett's new illustrations combine fun facts and hands-on activities in this accessible introduction to the science of light. Did you know that moonlight is really sunlight? The moon can't make its own light, so it receives light from the sun and then sends it to us here on the Earth.Any child who's

Ji-li Jiang was twelve years old in 1966, the year that Chairman Mao launched the Cultural Revolution in China. An outstanding student and much-admired leader of her class, Ji-li seemed poised for a s

After rain comes down, the sun comes out and dries the puddles. But the water isn't gone. The heat from the sun has turned it into water vapor-it has evaporated. Eventually, this moisture in the air c

Holly Keller has created vivacious new paintings for this favorite Reading Rainbow title about geology. Readers follow two enthusiastic rock hounds around the globe as they add to their collection. Al

Have you ever seen a butterfly in the snow? Probably not. Butterflies can't survive cold weather, so when winter comes, many butterflies fly to warmer places. They migrate. Woodchucks don't like cold

Archaeologists on a dig work very much like detectives at a crime scene. Every chipped rock, charred seed, or fossilized bone could be a clue to how people lived in the past. In this information-packe

The earth is like a spaceship in orbit—it has everything on board that we need to survive: water, food, and air with oxygen. Unlike a space shuttle, Earth is able to renew its resources. Read and find

Where did the caterpillar go? It seems to have disappeared, but it hasn't. It has turned into a butterfly! From the time a caterpillar first hatches, it eats so fast that it's skin can't keep up. It s

Many birds travel thousands of miles each year, migrating between summer and winter homes. Just how they find their way back and forth, sometimes returning to the exact same nesting grounds each year,

"[Here is] a charming introduction to the truly amazing octopus [from its intelligence to its ability to change colors to the camouflaging black ink it squirts to escape predators]. Lauber's chatty, f

This dictionary offers the general user and the student alike easy access to modern Italian and includes a thematically arranged guide to self expression in both Italian and English. With over 165,000

Most children have jumped into piles of leaves or helped their parents rake the yard, and everyone has wondered: Why do leaves change color? Activities that a child can do with leaves and even a list

Did you know that an oil spill occurs somewhere in the world almost every day of the year? Berger and Mirocha focus on one of the worst spills in history—the 1989 Exxon Valdez oil tanker spill&#

Water is always flowing, from a brook to a stream, to a river to the ocean. Read and find out more about how water shapes the earth and why it is important to keep our water clean.

Aliki takes readers on a guided tour that begins with grazing cows, proceeds through milking and a trip to the dairy, and ends with some different foods made from milk. This revised edition of Aliki's

What happened to the dinosaurs?For millions of years these fantastic creatures roamed our planet. Then, suddenly, they all disappeared. Scientists wonder why. What could have caused this huge extincti

"[This new edition of a book first published in 1962 is] an excellent introduction to the night sky and star gazing. The beauty of this book is its simplicity and the high percentage of success a youn

This easy-to-understand book tells why and how the Constitution of the United States was created. "Simple, attractive, informative....The most accessible history of the Constitution to date."--School

Wind Have you ever felt the wind tickle your face or heard it whistle through your window? Did you know that some wind travels faster than a car? Read inside to find out more about what causes wind,

The switch goes up -- the light goes on,The switch goes down -- the light goes off.It seems like magic! It's not -- it's electricity. But how does a light actually work? In this clear and simple book learn all about electricity, how it's produced, and how it can be used. At the end you'll learn how to conduct fun experiments that will let you generate electricity yourself!

?Branley explains these powerful storms in simple terms young children can understand. He describes the funnel cloud and how it forms and [tells] what to do during a tornado. The book ends on a comfor

How did those enormous dinosaur skeletons get inside the museum? Long ago, dinosaurs ruled the Earth. Then, suddenly, they died out. For thousands of years, no one knew these giant creatures had eve

What's so great about corn? Popcorn, corn on the cob, cornbread, tacos, tamales, and tortillas. All of these and many other good things come from one amazing plant. Aliki tells the story of corn: Ho

Dinosaurs are extinct now, but you can visit dinosaur skeletons in a museum. There you will meet Brachiosaurus, Stegosaurus, and Diplodocus and learn how they ruled the earth millions of years ago. Yo

Word tip Find out more about your language Life coach Speak and write in tokay’s language Word origin Choose the right words for every situation

Developed to support young learners, Collins Junior Illustrated Dictionary is the ideal reference tool for use at home and in the classroom. Find it fast Colour headwords and the alphabet on every p

Collins Mini English Dictionary is a great choice for everyday use. The attractive, open layout is a pleasure to consult, as all entry words and spelling forms are highlighted in colour. Based on anal

It is Christmas Eve. The Lee family reunion is shattered when the tyrannical Simeon Lee is found dead in a pool of blood, his throat slashed. When Hercule Poirot offeres to assist, he finds an atmosph

A rebranded version of the essential Latin dictionary and grammar – two books in one handy volume.

A desperate woman seeks the aid of Hercule Poirot in a matter of life and death. A near-lethal dose of poison, a blood-stained knife, a revolver, and a family who aren't what they seem all figure in a

This edition of the bestselling Collins Dictionary & Thesaurus gives up-to-date language coverage plus the maximum choice of alternative words, with matching dictionary and thesaurus entries on th

This new edition of Collins School Thesaurus is an essential reference tool for all students. Each entry is followed by a wide range of alternative words and examples, making it easy for the user to c

This second edition is a companion to the Collins "Dictionary of Idioms" - clarifying key idioms with thorough practice. It deals with 100 of the most common idioms in English, providing practice and

Especially designed for children aged 10 and over, this clear, comprehensive dictionary contains all the features useful for upper primary use and much more besides, from homework support via Collins