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 condenses to form new clouds. Soon the rain will fall again.

    But how do you count zero, a number that is best defined by what it's not?Can you see it?Can you hear it?Can you feel it?This important math concept is beautifully explored in a way that will inspire children to find zero everywhere--from the branches of a tree by day to the vast, starry sky by night.

    Walter lives happily in the remote heights of the Alpine Mountains, caring for his family’s goat herd and practicing his marksmanship in the hopes of making his father proud. But as the end of the year approaches, Walter’s peaceful life is shaken as his country enters a revolution, and Walter must carry a secret that could threaten the life of the father he loves so dearly. More than seven hundred years have passed since the day Walter stood in the marketplace balancing an apple on his head while the Austrian tyrant Gessler commanded Walter’s father, William Tell, to take aim at the apple with his great crossbow. The dramatic tale of William’s arrest and escape and the daring revolt of the Swiss against the Austrians has become a legend around the world.

    ‘An accurate and entertaining book for beginning independent readers.' 'BL.

    It’s a fun way to keep your child engaged and as a supplement for activity books for children.Ariel would love to be in the basket of Lucky Star on the day of the big balloon race against Bernard the Brave. Her mother, Carlotta the Great, is the best lady balloonist in America. But Ariel's parents think she is too young. Little do they know she is asleep in the Odds and Ends box when Carlotta the Great orders "Hands off!" and the balloon race begins. The thrills of Ariel's first ride in a hydrogen balloon come to life in this story based on a real ballooning family of the late 1800's. Carolyn Croll's pictures capture the pageantry and drama of the race, and will have readers rooting to the end for Ariel and her mother.

    Will Mama Bear have enough nuts, berries, and seeds to make her famous pie? Kids will learn to arrange the nuts, berries, and seeds into groups of ten to find out.Kids will love the story and the funny illustrations. Parents and educators will love how the story and pictures make understanding comparisons a breeze—as well as the concrete examples of how math works. The book contains activities for adults to do with kids to extend math into their own lives. Math = Fun!MathStart is an award-winning series by Stuart J. Murphy that teaches math through stories and visual models. Young readers find the stories engaging and relatable, because each story revolves around practical applications of the math concept being presented and features lively art from top-notch illustrators.Charts and other visual representations help children understand how the math works and promote deeper comprehension. This unique combination of stories, illustrations, and visual models helps teachers and parents in the teaching of math and provides all children with the opportunity to succeed.The 63-book series is divided into three levels with 21 books in each. The math concepts taught in MathStart books conform to state and national standards. Level 1 is Pre-K–Kindergarten; Level 2 is Grades 1–3; Level 3 is Grades 2–4.  The series follows math topics across grades so there is a foundational path to learning that runs through the levels.

    in full color. "The drama of natural disasters provides prime material to entice young independent readers. In this volume, the account of the eruption of Mount Vesuvius describes village life 2,000 years ago, the eruption itself and its aftermath, and the excitement when the buried town is rediscovered centuries later. A lively and factual glimpse of a devastating moment in history, in an accessible, attractive package."--Publishers Weekly.

    Frizzle, the strangest teacher in school, takes her class on a field trip to the waterworks, everyone ends up experiencing the water purification system from the inside.

    The Amish first came to Pennsylvania in the early 1700s, and to this day preserve a religious and "plain" life-style. As part of her household chores, Naomi looks after the chickens with her little sister, Ruth.One day Naomi and Ruth find an abandoned egg near the road. This is no ordinary chicken egg, though. In fact, surrounded by the simplicity and austerity of their Amish ways, this egg is almost "fancy." Naomi decides this special egg must be hatched. And when it is, it's plain to see that this is no ordinary chick!The girls manage to keep the chick, dubbed Fancy, a secret... until the day of the Vleckes' frolic, or community working bee. On this day, Naomi is to receive a white organdy cap, a family tradition, as a reward for her hard work and responsibility. But on this day, too, Fancy decides to introduce himself to the community.The results are a sheer delight, pure and simple. Patricia Polacco's passion has taken her into the heart of Amish country in search of a story. In this unabridged reading of her award-winning book, her lively voice, accompanied by her beautiful artwork carry this story of discovery and growing up into the hearts of all who listen and turn its pages.

    Pedro captured his experience between the pages of a journal. If he did not return alive perhaps someone, someday would find it and learn of his incredible journey to the New World.

    But when Daddy moves on, the three boys must begin their own journey. They must learn to care for one another and face the dangers of the wilderness alone.

    Under Olivia Coolidge’s skillful pen, the landscape of early Greece and its famous legends bloom with vigor and are perfectly suited to the adventure-seeking reader.

    The ship is full of exciting places to explore, but when George ventures into the first class storage cabin, a terrible boom shakes the entire boat. Suddenly, water is everywhere, and George's life changes forever.Lauren Tarshis brings history's most exciting and terrifying events to life in this new fictional series. Readers will be transported by stories of amazing kids and how they survived!

    Then one afternoon the ground growls, hisses smoke, and swallows up his plow. A volcano is erupting in the middle of his cornfield!

    The third edition of this perennial favorite is chockfull of maps, charts, and graphs, photographs, flags and facts—everything you need to help understand the world.You’ll begin by learning about maps and how to read them. Then you’ll explore the world’s physical and human systems, including Earth’s geologic history, natural vegetation, and world cultures. A stunning view from space introduces each continent, and full-page, full-color maps represent its physical and political make-up, its climate and precipitation, and its population and predominant economies. A vivid photo essay highlights an issue relevant to each continent, such as the European Union, or deforestation in the Amazon. Continuity of map sizes and scales encourages data comparison, which helps geography students to develop higher-level thinking skills.The National Geographic Student Atlas of the World is much more than maps. Weblink icons direct you to Internet sites to expand your knowledge and keep statistics up to date. The third edition of the award-winning National Geographic Student Atlas of the World is an invaluable resource and a must-have reference tool for libraries and homes everywhere.