Los ciclos de vida de los anfibios (Amphibian Life Cycles)

Life on Earth depends on carbon. In fact, about 18.5 percent of a human body's mass is carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the carbon cycle. Though this concept can be confusing, all readers have a chance to understand this concept through the text and simple diagrams in this book. Both struggling readers and those looking for review can find the most important components and vocabulary of the carbon cycle in low-level, accessible text.

There are thousands of species of bees, and not all are yellow and black. However, the telltale yellow and black of the honeybee and bumblebee are the best known. Beginning readers explore the world of bees and find out what keeps them busy all day. From flying from flower to flower to making honey, the details in this book are both familiar and new to curious future entomologists. Full-color detailed photographs complement the low-ATOS text, making it the perfect addition to any early elementary library or classroom.

Bécquer, Machado, Juan Ramón son algunos de los poetas que han seguido la estela de Ferrán. Las coplas populares, los cantares que son poesía breve, seca, natural, fueron recogidos, y creados, por un poeta del que escribió su amigo G.A. Bécquer: ''en la obra de Ferrán, la poesía popular, sin perder su carácter, comienza a elevar su vuelo'';

A young boy travels to China to learn about the people and culture of one of the world's most powerful nations.

Caprichosa, cruel y extravagante, Cleopatra pervirtió a los grandes hombres de Roma, primero a Julio César, después a Marco Antonio, apartándolos de su alta misión y destruyendo sus vidas. Una mujer clave en el escenario político de su tiempo que despertó pasiones que hicieron temblar imperios.

Describe el trabajo hecho en la estación de policía, el personal, los procedimientos y programs de los oficiales de policía.