Con la energía del Sol ebook

On a clear night, you should be able to see the stars. But we cannot always see them. Light pollution prevents us from seeing the stars and causes other problems as well. Learn about light pollution with this STEAM book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, it features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in...

El libro del pan (The Bread Book) helps Spanish readers strengthen their multiplication, division, and fractions skills while learning interesting facts about bread. Students will learn about wheat grain, nutrition, and bakeries with this nonfiction math reader. This classroom resource includes a glossary, engaging images, mathematical diagrams, and a fun historic timeline of bread to help students develop their math and reading skills.

La presente obra realiza un estudio exhaustivo del Derecho de las obtenciones vegetales establecido en el Convenio de la UPOV, así como en los ordenamientos de la Unión Europea y de España. El libro se divide en veinticinco capítulos, agrupados en siete grandes bloques temáticos referidos, sucesivamente, al sistema normativo, a los requisitos de protección de las variedades vegetales, al derecho a la protección y el procedimiento de registro, a los efectos de la protección, a las obtenciones vegetales como objeto de propiedad, a la nulidad y a la caducidad, y a la defensa del derecho...

Ants are known as one of nature's hardest working animals. Their strength and persistence in bringing food to their colonies have been well documented. Now, beginning readers have a chance to learn about some of the littlest bugs in this volume written just for them. Complete with information about what ants eat, how they live, and generally how they stay so busy, this book is a must-have to satisfy the curiosity of your youngest naturalists. Eye-catching and unique photographs complement the low-ATOS text and aid in comprehension.

¿Qué es un “experimento mental”? Como nos dice Martin Cohen, «al igual que los que se realizan en el laboratorio, son pruebas que se conciben con el fin de explorar (o de destruir) las intuiciones que tenemos sobre el funcionamiento del mundo». Este libro imprescindible para todos los amantes del saber, desde los científicos a los filósofos, recopila los 26 experimentos de esta clase más interesantes realizados a lo largo de la historia. Y no es poca sorpresa, para empezar, enterarnos de que toda la ciencia moderna se sustenta sobre los modestos cimientos que establecieron media...