Cosmos en 3D

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.

Children often assume that being fair means that everyone gets the same number of cookies, but at the heart of fairness is consideration, respect, and caring for others. Your readers will encounter real-life situations in which young people figure out how to act fairly. They'll meet Ben and Jane who are playing on the swings at recess while other children wait to use the swings. What is the fair thing to do? Each spread consists of one of these relatable scenarios along with a full-color photograph. Fun, accessible text encourages readers to consider how they treat others as they discover...

Un práctico libro que engloba diferentes contenidos, con explicaciones muy sencillas e ilustraciones adaptadas, para tratar los temas preferidos de los más pequeños. Con esta enciclopedia podremos resolver las dudas más diversas con claridad y precisión.

La gesta que marcó un hito en la historia samurái. ¡El épico desenlace de la trilogía Chihaya! El levantamiento del emperador por el control de Japón ha fracasado y mientras permanece prisionero en Kyoto los últimos rebeldes que apoyaban su causa se ven amenazados por la unión de las fuerzas leales al shōgun y al clan Hōjō. El enorme ejército avanza implacable desde el este haciendo temblar la tierra de Las Islas Sagradas, pero, en el centro del país, un puñado de samuráis pretende detenerlos el tiempo necesario para que los rebeldes puedan fortalecerse. Dispuestos a sacrificar ...