Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

A beautifully illustrated picture book takes young readers on a journey of discovery to find out what it would be like to go to the moon, as they fly into outer space, walk on the Moon, and take a look at our world from a very, very long way away.

Gorillas, wolves, chickens, and kangaroos. It might not seem obvious at first, but these species all have something in common: their individual members must all find their places within their groups. These power struggles can be dangerous! Read about the fierce world of animal alphas and how they make it to the top. This Spanish nonfiction book will keep students engaged in reading as they build their literacy, vocabulary, and comprehension skills. Important text features include a glossary, index, and table of contents. The Reader's Guide and culminating activity require students to connect...

Bruno Rodríguez y Eyal Weintraub, cofundadores de la agrupación ambiental Jóvenes por el clima, parte del movimiento Fridays for Future creado por Greta Thunberg, comparten su visión sobre la crisis climática y analizan el rol vital de la juventud en la construcción de un nuevo paradigma que permita imaginar un futuro distinto en el planeta. En el año 2019, los jóvenes Bruno Rodriguez y Eyal Weintraub, recién salidos del colegio secundario, observaron lo que la huelga de Greta Thunberg en Suecia estaba generando a nivel global y entendieron que había que poner manos a la obra. La...

Bored by her daily routine, Olga the sheep thinks outside the flock and ends up creating a wonderful surprise. Includes facts about sheep.