La búsqueda de la velocidad: Los vehículos (The Quest for Speed: Vehicles) (Spanish Version)

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. This 6-Pack includes six...

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.

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

"In this title, children explore the reasons why they may feel lonely, how to recognize feelings of loneliness, and appropriate action to take when they feel lonely."

Las relaciones que se establecen en un ecosistema entre organismos de especies diferentes resultan sorprendentes e ingeniosas. Estos contactos pueden suponer desde un beneficio mutuo hasta la muerte de una de ellas para servir de alimento a la otra. Estas relaciones, a veces peligrosas, son muy variadas y a menudo requieren mucha imaginación. Disponible en catalán, para comprarlo haz clic aquí.

Helps youngsters learn about these colorful figures and their fascinating lives through riddles, question and answer games, and activities. PP.

Sitting Bull first went to battle at the age of 14. He grew to be widely respected for his bravery and insight, and became chief of the Lakota nation in his thirties. By the time he met General Custer at the Battle of Little Big Horn, his courage was legendary. Though he soundly defeated Custer, public outrage at the defeat brought thousands of cavalrymen to the area, where it took four more years before the brave chief would surrender. He was forced onto a reservation where he was later killed when police attempted to arrest him.