Experimentos sencillos sobre el espacio y el vuelo

A little girl, who accumulates germs on her hands during her busy day, defeats them by washing her hands before meals.

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

Baba es el búho encargado de la noche y de proteger a todos los niños del mundo mientras duermen. Pero tenemos un problema: muchos niños no quieren irse a la cama, y todos por razones distintas. Y esto también desgasta a sus madres y padres. Baba nos explica un secreto infalible para conseguir un sueño placentero a través de la respiración y la relajación del cuerpo. Y todo ello acompañado de las canciones del grupo musical Xiula.

Land has many different characteristics. It can be hilly, rocky, grassy, narrow, and dry. Or, it can be flat, smooth, sandy, wide, and wet! This Spanish book introduces students to the concept of landforms. With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young students as they improve their reading skills. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage students in learning...