Energía del viento

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

Con este tomo de "Animales Salvajes" vas a conocer uno de los felinos más ágiles, silenciosos y veloces de cuantos existen en el mundo. A través de los textos y de las estupendas fotografías de este libro, descubrirás algunos aspectos curiosos de la vida del leopardo: cómo descansa, cómo se camufla, cómo guarda los restos de sus presas fuera del alcance de otros animales... Sabrás muchas cosas sobre uno de los animales más bellos del mundo.

Read Along or Enhanced eBook: Take a journey into the wild world of reptiles and amphibians! Readers will learn about crocodiles, lizards, snakes, tortoises, and salamanders. Featuring a glossary, index, colorful images and charts, intriguing facts, and clear, informative text, readers will be sure to be enthralled as they move through this engaging, Spanish-translated book.

Kærlighedshistorie om 2 unge der, fra hver sin verden, finder sammen i halvtredsernes Barcelona. I 1984 mødes de igen og dykker ned i en foruroligende og klarsynet refleksion over de mellemliggende år

Our toilets toil away for us every day. Yet, they get little thanks for their hard work! When you think of toilets, you probably picture one in your home. But, toilets can be very different around the world. At first glance, a toilet is a simple device, but they are critical for proper sanitation. There are many people worldwide who do not have access to a toilet. Let's dive into an exploration of the history, importance, and inner workings of toilets! This Spanish book combines math and literacy skills and uses everyday examples of problem solving to teach subject area content. The...