Dinosaurios del 1 al 10

In a dream, Joaquín meets various animals and discovers that they have very different tails which prove very useful to them.

Posing questions which range from the most unusual matters to the most elementary ones, Questions that make your hair stand on end 2 focuses on the Earth and the Sun. Readers will be able to entertain themselves with very illustrative experiments and will also get to know what is so special about the Eiffel Tower, who Diogenes was, why Magellan lost a day on his way, why we get goose bumps, how can temperature be measured with a cricket, among other curious facts. In addition to the recognition of critics and readers, Questions that Make Your Hair Stand on End 2 was awarded the Premio...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of debugging. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how debugging works in the real world. In this book, readers will investigate what's wrong with a circuit and find out how to fix the problem. This nonfiction book is ...

A flexible suite of resources providing full coverage of the Cambridge IGCSE® Spanish as a First Language syllabus (0502) for first examination in 2015. Written by practising teachers, this workbook helps students further develop the skills acquired through the course. Practical exercises expand and enhance the materials in the coursebook, supporting students through the Cambridge IGCSE® Spanish as a First Language course.

Discover how the heart and lungs work together to keep the blood flowing and the body breathing in this book that provides pictures of real hearts and lungs and accompanying diagrams. Readers will learn about circulation and breathing as well as related vocabulary.

«En un mundo violento, erizado de muros y excavado con fosos, el universo de Francisco de Asís carecía de torreones y murallas. Pobre de bienes y de poder, estaba en paz con todos, vivía como hermano de los seres, y a todos ellos dirigía una mirada llena de respeto... Sus ojos habían llegado a ser maravillosamente humanos... Su horizonte no era la cristiandad de su tiempo, con sus fronteras que defender, sino Jesucristo, a quien amar, y el ser humano a quien salvar». Eso fue lo que llevó a Francisco más allá de las fronteras de la cristiandad. En plena cruzada, partió hacia Oriente ...