Cómo funcionan los juguetes (How Toys Work)

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

There is an amazing muscle inside your body. It pumps blood and keeps you healthy. What is it? Your heart! Read all about it in this colorful, Spanish-translated title.

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.

Escrito y leído en femenino. Análisis y valoración en su contexto aporta una nueva visión sobre las novelas para niñas que se escribieron entre finales del siglo XIX hasta mitad del XX. Más allá de considerarlas simplemente el vestigio de una época pretérita, muestra que sus autoras y lectoras crearon un espacio propio en la Literatura Infantil y Juvenil. que no siempre ha tenido un reconocimiento justo y una valoración crítica ponderada. Este libro es, pues, una mirada sin prejuicios a un circuito femenino que, de forma oculta o manifiesta, sigue presente en la sociedad literaria.

Al oír contar la historia de los atentados del 11 de septiembre por un joven Maasai que estaba en Nueva York en aquel día, los miembros de la tribu deciden de donar al pueblo estadounidense catorce vacas sagradas como regalo curativo.

A trip to Comic-Con becomes an adventure in learning division! Join Zach as he travels to San Diego to attend his very first comic book convention. Along the way, learn about the history of comic books and comic book conventions, and meet the dedicated fans who make Comic-Con one of the most widely attended comic book conventions in the world. This Spanish book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, math charts and diagrams, sidebars, and practice problems make learning division relevant and fun....

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book. This 6-Pack includes six copies of this title and a lesson plan.