Técnico electricista 4 - Corriente alterna

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!

Poemas vibrantes de gran romanticismo narran vivencias de un amor sublime que termina con la partida de 'Flor' y la subsiguiente soledad que quebranta al autor. Resalta la sencillez del estilo, su ritmo melodioso y pausado, y el profundo lirismo.

Some of the most powerful things in the world are so tiny they can't be seen with the naked eye! Readers will be amazed at what they see when they take a glance at the world of the mini but mighty in this stunningly fascinating Spanish-translated nonfiction title that features remarkable images and graphics, informational text, index, and glossary. Through these features, readers are able to explore and discover such micros as DNA, atoms, bacteria, phytoplankton, and nanotechnology items like nano-robots and microchips! This 6-Pack includes six copies of this title and a lesson plan.

Simple text and photographs show how common shapes can be put together to create new and different ones.