Evolución y vida (Charles Darwin)

People have been mystified by the Milky Way since ancient times. The Milky Way contains over 200 billion stars, but it is also made up of gases, dust, stars, planets, and solar systems. With detailed images and fascinating sidebars, this nonfiction Spanish book explores the Milky Way in depth, and introduces students to new concepts, vocabulary terms, and STEM topics. Aligned to state and national standards, the leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity encourages students to think like scientists. Keep students engaged in learning with ...

"Este libro de fotos-ilustrado para lectores principiantes describe las clases de tiempo asociado con la primavera y analiza câomo la gente disfruta el clima cambiante." -- Ofrecido por editor.

Among the multitude of dictionaries available on the market, this one stands out for being especially designed for students and learners of English. This dictionary is the ideal learning tool for students at the intermediate level who wish to expand upon their knowledge of the English language. To this end, this volume offers over 40,000 terms taken from everyday language, each with its phonetic transcription to make pronunciation easier. It also features examples of grammatical usage, numerous informative charts (with both grammatical and cultural information), helpful illustrations, and...

Ahora en español, la verdadera historia del juguete favorito de todos los niños en el verano, la Súper Pistola de Agua, y cómo fue inventado por accidente. Mientras trataba de crear un sistema de enfriamiento para refrigeradores, Lonnie Johnson inventó sin quererlo el mecanismo de este emblemático juguete. Cuando era niño le encantaban los cohetes, los robots, todo tipo de inventos y, sobre todo, la creatividad. Gracias a su pasión y persistencia por resolver problemas, llegó a ser ingeniero y a trabajar para la NASA. Pero dio el gran salto a la fama cuando inventó la Súper Pistola ...