Naturalezas mutantes : del Bosco al bioarte

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Juro lealtad a la bandera (I Pledge Allegiance to the Flag) teaches students about the Pledge of Allegiance. This book uses intriguing primary source images and documents and simple sentences to engage students in reading as they build their social studies content knowledge. For use in the classroom or at home, this Spanish book includes a simple glossary, captions and an index to introduce informational text features to young readers and provide additional reading support.

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

Un pueblecito de Irlanda. El cartero del pueblo descubre tres cadáveres en casa de Moira, una vecina extravagante y distante que hace años que vive sola y apartada en su gran casa. Los cadáveres corresponden a dos hermanas jóvenes, Fiona y Roisin, huérfanas y sobrinas de Moira, y a ésta última. Los cuerpos de las jóvenes están en un estado esquelético y con señales de haber estado esposadas.Unos días más tarde Niall, un joven empleado de correos, descubre en la oficina un paquete abandonado enviado por Fiona: dentro del sobre hay un diario en el que declara que ella y Roisin han...