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.

Fruits and vegetables both come from plants. Fruits have seeds. Vegetables do not. Let’s learn more about fruits and vegetables. Paired to the fiction title Planting Seeds.

Existen una serie de criaturas fantásticas que residen en la delgada línea que divide lo real de lo imaginario. Con este libro se puede aprender todo sobre los gnomos, las brujas, las sirenas, los elfos o los ángeles en textos increíbles e ilustraciones mágicas.

Describes the U.S. Army Rangers, including their missions, vehicles, weapons, equipment, and duties. Written in English and Spanish.

Un cuento con puzles magnéticos y 20 imanes de animales. ¿Qué ocurre si no le das a cada animal su comida? ¡Pues que toda la granja se vuelve loca! Lee el cuento y luego utiliza los imanes para crear tus propias sorpresas en la granja. ¡Hay hasta 100 combinaciones posibles!