La carta de derechos

Eco-Friendly Energy Is Explained. The Most Current Information Is Provided While Establishing The Understanding That It Does Not Take Much To Make The World A Better Place.

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.

The ancient Polynesians were amazing navigators who traversed the Pacific Ocean and settled in its many islands. How did they travel such extreme distances and know where they were going without the use of modern technology like smartphones, satellites, or even magnetic compasses to guide them? Learn the answer to these questions in this Spanish book that uses real-world examples to illustrate science concepts. Created in collaboration with the Smithsonian Institution, this Informational Text builds reading skills while engaging students' curiosity about STEAM topics. Packed with factoids and ...

Biografía de Azucena Villaflor es un material indispensable para quien quiera conocer detalles del origen de Madres de Plaza de Mayo. Del origen contado por sus propias protagonistas. Y para conocer a Azucena desde tres generaciones anteriores. Pero sobre todo, para recorrer al lado de ella los días tremendos desde el 30 de noviembre de 1976 cuando la dictadura secuestra a su hijo Néstor, hasta que es arrojada desde un avión de la Marina, con vida, al mar.

Understanding the concepts of solids, liquids, and gases is central to the early science curriculum. States of Matter uses simple, authentic Spanish text to introduce ELL students to these important concepts. Each book features a strong photo-text match and clear, full-color diagrams to enhance comprehension.

Ofrece una explicación de las soluciones y mezclas y en qué se diferencian, así como ejemplos de mezclas y soluciones.