Las cadenas alimentarias en el desierto (Desert Food Chains)

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...

Fragmentos auténticos de cuentos españoles e hispanoamericanos con actividades para trabajar el componente sociocultural. Vocabulario multilingüe al final del libro.

Animales al natural es un recorrido por un zoológico -uno portátil, además- en el que podemos observar animales a escala real. Las 21 fotografías que lo forman capturan y permiten examinar los detalles más sorprendentes de la fisionomía animal, desde la textura de la lengua de un tigre hasta las pestañas de un camello. el visitante de este libro podrá encontrar señalizaciones, ilustradas de manera creativa y lúdica, que contienen información básica de cada animal, como nombre científico, peso y dimensiones, además de otros datos menos conocidos y muy curiosos.

This nonfiction Spanish book teaches students about energy, and introduces them to important scientific concepts and vocabulary terms like amplitude, frequency, infrasound, transverse waves, and supersonic. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.