Los ciclos de vida de los insectos (Insect Life Cycles)

From the candiru to the lionfish, there are so many kinds of fish on Earth. While all have different methods of production, the basic life cycle is the same, from egg to spawning swimmers. Readers are introduced to this general cycle as well as the important vocabulary needed to talk about it, such as “fry” and “spawning.” Accessible language and simple diagrams throughout the book provide a way for struggling readers to tackle science curriculum content.

The plot of The Empty Region takes the reader from the military camps of holy warriors in Pakistan, to the security corridors of the CIA and the FBI. It’s a fascinating puzzle inhabited by historical characters, including Osama bin Laden and George W. Bush, as well as officials aware of the tragedy´s secrets. Szichman leads us along the terminals where the air pirates of al-Qaida consummated their tragic ritual, makes us travel on the airplanes, turned into guided missiles, and recreates the 102 minutes when the burning towers of the World Trade Center became hell on earth. Although...

Los temas de sus Odas son variadísimos, en ellas se exalta la amistad, el amor, la vida rústica o la grandeza de Roma. Sus motivos son también muy diferentes, en unas es un convite o un ánfora de vino o un pasaje de la mitología; en otras, lo será una reflexión moral, un suceso de la vida corriente o un elogio del emperador. En los Épodos predominan con más frecuencia los temas de tipo satírico aunque encontramos también temas amorosos o báquicos. Sin embargo, en la poesía de la Antigüedad los géneros vienen determinados por la métrica y no por la temática, así las Odas...

Adrián Paenza presenta un nuevo libro con desafíos atrapantes y entretenidos dedicado a sus lectores más jóvenes, porque para la Matemática no hay edad.

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...