Delfines y Ballenas

This book looks at natural structures such as plants, animal bodies, mountains, caves, rock formations, and icebergs, the materials from which they are made, and their colors, shapes, and textures. It shows structures made by animals, such as beehives and bird nests. This wonderful book with amazing photos will encourage young readers to notice colors and shapes in nature and how they relate to the purpose of structures.

Travel from the Egyptian pyramids, to the canals of Venice, to a space station, all within a single book! Each colorful page is filled with logic and observation games for curious minds. An answer key is included at the end of the book.

Twirling tornadoes, horrific hurricanes, deadly dust storms, and blowing blizzards. Depending where you live, you may have experienced one of these extreme storms. Although being caught in extreme weather can be dangerous, being prepared can save your life. This nonfiction Spanish book introduces students to extreme weather, and teaches them important scientific concepts and vocabulary. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the fun lab activity provides a real-world learning experience that ...

Esta obra es el resultado, principalmente, de los apuntes de Televisión utilizados en los cursos desde hace años han venido siendo actualizados de manera prácticamente constante. El material de la obra abarca los aspectos básicos relativos a los sistemas tanto analógicos como digitales.