La Condena del silencio

Probablemente hayas oído hablar de leones y tigres. Quizás los hayas visto en el zoológico. ¿Pero has oído hablar del leopardo nublado? Este tímido miembro de la familia de los gatos es una especie en peligro de extinción. Su timidez hace que estudiarlos sea un desafío para los cuidadores del zoológico y los científicos. Descubra por qué son tan especiales y por qué necesitan nuestra ayuda. Creado en colaboración con la Institución Smithsonian, este Texto Informativo del Smithsonian desarrolla las habilidades de lectura de los estudiantes mientras despierta su curiosidad sobre...

Explore the various islands that make up the Caribbean including the different plants and animals that inhabit this tropical paradise. Bright, dazzling photographs bring the Caribbean to life as readers are exposed to vocabulary related to the unique activities and customs of the Caribbean.

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...

Learn How Dams And Levees Are Built As Well As The Effects They Have On River Systems In A Region, And Places Downstream.