¡Cuenta conmigo! La feria de la escuela

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Read Along or Enhanced eBook: Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

Read Along or Enhanced eBook: Engineers have built some incredible things. But with every new feat, there is failure. Readers will learn about engineering feats and failures like the Titanic, the Hindenberg, the Hoover Dam, and more in this engaging, Spanish-translated nonfiction title. This book features brilliant images, charts, and intriguing facts in conjunction with informational text and mathematic skills to keep readers active and engaged.

¿Quién era Darth Vader antes de pasarse al Lado Oscuro? ¿Cuáles son las armas más originales utilizadas por El Joker? ¿Quién es el despiadado agente de Kaos más agradable de todos los tiempos? ¿Y el asesino serial más encantador y culto? ¿Qué héroes y heroínas esconden un pasado oscuro? Este libro reúne los secretos de los más variados villanos: desde los clásicos, como Drácula y Lex Luthor, hasta los expertos en artes oscuras, como Skeletor y Sauron. Sin olvidarnos de brujas, asesinos seriales y de animales que dejaron sus huellas infames en la historia de la ficción....

¿Cuáles son algunas de las cosas que nosotros podemos aprender sobre los animales tomando en cuenta la forma de sus bocas o picos? ¿Qué podemos deducir sobre los animales con dientes filosos comparados con los que tienen dientes largos y planos? ¿Existen algunos animales sin bocas? En esta secuela sobre las series de Adaptaciones de animales, la galardonada fotógrafa y educadora naturalista Mary Holland comparte las fascinantes bocas de los animales con los lectores de todas las edades.

Few kids can resist jumping into a big puddle. Getting wet can be fun. Learning to describe objects as wet can be fun, too, as evidenced in the bright, entertaining photographs and simple, engaging text in this motivating book. Readers will love to identify the objects within these pages, selected to appeal to them, and use the objects to comprehend new vocabulary words in corresponding sentences.