Las ballenas

¿Qué son realmente las bacterias? ¿Qué ventajas nos ofrecen y qué riesgos representan? Un viaje ilustrado para descubrir por qué estas tripulantes microscópicas del cuerpo humano son necesarias para nuestra salud. Tenemos la idea equivocada de que todas las bacterias son feas, sucias y malas... ¡pero no es así! De la mano de la simpática Bac, descubre cómo estos minúsculos seres que habitan por miles en nuestro organismo trabajan sin parar para ayudarnos a vivir mejor: las bacterias potencian el sistema inmunitario para protegernos de las enfermedades, producen vitaminas...

Practice data analysis while learning about endangered species! This title allows young readers to improve their understanding of data analysis and graphing methods, teaching them about probability and STEM skills through bar graphs and pictographs. This book includes engaging examples of wild animals who are endangered species, teaching readers about their habitats, their greatest threats, and their predicted populations. Vibrant images, exciting examples, and clear mathematical diagrams and charts engage readers while making them more confident in their data analysis skills.

Ants are so important to our ecology that some scientist fell that if ants ever disappear so might humans! SOY UNA SEMILLA es un libro de la serie Hola, lector! que muestra la diferencia entre dos semillas, asi como su evolucion hasta llegar a convertirse en plantas. Los ninos disfrutaran del texto dinamico con el que esta escrito este libro.

Many people take the Internet for granted. But there are places that lack Internet access. Being connected helps people connect, and new ideas are being developed and tested to bring the Internet to more of the world. This Spanish nonfiction book will keep students engaged in reading about Internet access as they build their literacy, vocabulary, and comprehension skills. Important text features include a glossary, index, and table of contents. The Reader's Guide and culminating activity require students to connect back to the text as they develop their higher-order thinking skills. Check It...