Derecho de las obtenciones vegetales

Con imágenes familiares, textos sencillos y piezas para quitar y poner en cada página, este libro de primeras palabras ayudará al desarrollo del vocabulario de tus hijos. With familiar images, simple texts, and pieces to place and remove on each page, this book of first words will help develop children's vocabulary.

Basic concepts about electricity for highschool level and college. Topics include: Electrical circuits, Ohm's law, serial and parallel circuits, electric power, CD circuits, etc. With questionnaire.

[English]Why do maple and oak trees drop their leaves in the fall? What other animals share the forest with chipmunks, deer, and snakes? Hike through this book, and find out what makes temperate deciduous forests one of Earth's treasures. [Spanish]¿Por qué al arce y al roble se les caen las hojas en el otoño? ¿Qué otros animales comparten el bosque con las ardillas listadas, los venados y las serpientes? Da un paseo por este libro. Descubrirás por qué los bosques templados son uno de los grandes tesoros de la Tierra.

From the water they drink to the trees they climb, kids are connected to the natural world in big and surprising ways. With simple, poetic text and exquisite artwork, this book does more than introduce kids to these connections. It sparks their imagination. It starts conversations, and it delights all ages. Combining the ideas of environmental author Elin Kelsey with the inventive three-dimensional dioramas of artist Soyeon Kim, this remarkable picture book reveals ties that are often sensed yet seldom explained. And in a world dominated by technology, never have these incredible connections...