Un día de trabajo de un biólogo molecular (A Day at Work with a Molecular Biologist)

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, ...

¿Puede un día soleado convertirse en una noche estrellada? ¡Descúbrelo! Las cosas no siempre son lo que parecen...

"In this title, children explore the reasons why they may feel embarrassed, how to recognize feelings of embarrassment, and appropriate action to take when they feel embarrassed."

Now in Spanish: the story of Pablo Picasso's brilliant life! Over a long, turbulent life, Picasso continually discovered new ways of seeing the world and translating them into art. Young readers now have a Spanish translation of this entertaining, highly readable biography, with more than one hundred black-and-white illustrations.