Por qué algunos animales tejen telarañas (Why Animals Live in Webs)

Offers a description of Earth, the third planet from the sun, which includes information on its origins, composition, and unique characteristics.

The moon people use a cloud bridge to travel to the Earth, a messy but beautiful world of incredible variety that becomes their new home.

Un detective privado, amante del deporte y, en especial, del running, es contratado para que ayude a resolver un misterioso asesinato. Durante la investigación, al mismo tiempo que interroga a los sospechosos y recoge las pistas de los testigos, hará amistad con un grupo de personas que lo acompañarán en nuevas aventuras, siempre relacionadas con el mundo del deporte. Con un nuevo estilo vivo y dinámico, José Moratinos Iglesias aborda por primera vez en sus escritos la modalidad del relato policial. Para ello, abre una tercera vía en este género, intermedia entre la concepción...

Expanding on our popular Let’s Explore Science series, this book focuses on the scientific method. The scientific method is a step-by-step process for solving science problems. Scientists use it every day. Explaining each of the five parts; observing and asking questions, researching your topic, forming a hypothesis and testing it, designing and conducting an experiment, and analyzing and drawing conclusions from your result are all mapped out in detail. Learn how this straightforward topic can sometimes be a little trickier than it seems! This book will allow students to generate and...