El maravilloso ciclo del agua

"El rico contenido y las llamativas ilustraciones de Mi biblioteca de ciencias, despiertan en los lecotres gran interés por la ciencia y los procesos científicos. La serie incluye datos interesantes sobre: la Tierra, el sistema solar, la materia, la energía, la fuerza y el movimiento, y la vida en nuestro planeta. ¡Por fin resulta divertido aprender sobre la ciencia!,"--page [4] of cover.

Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the current dwarf planets, characteristics, size, and orbital patterns, as well as the three rules scientists follow to characterize these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in the future! This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, ...

¿Sabías que James Madison ayudó a escribir la Constitución de Estados Unidos de América? Fue también el cuarto presidente de los Estados Unidos. Podrás encontrar estos y muchos otros datos interesantes en James Madison, uno de los libros de Padres Fundadores. Did you know that James Madison helped write the U.S. Constitution? He was also the fourth president of the United States. These interesting facts and more can be found in James Madison, a Founding Fathers book.

"Brief text introduces the concepts of long and short, comparing some of the world's longest animals with animals that are short -- in both English and Spanish"--Provided by publisher.