Piquiriquitraque

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

Libro oficial del videojuego más vendido de todos los tiempos. Eres un gran inventor?. ¿Buscas inspiración para tus próximos inventos épicos? ¡Pues no busques más! Explora los ingeniosos edificios de doce constructores legendarios, quienes están dispuestos a mostrarte sus creaciones más impresionantes; entre ellas, una estación espacial intergaláctica, un santuario de animales, una fábrica de monstruos, un canal kawaii y muchas otras más. Aprende sus mejores trucos para crear estas increíbles construcciones y sigue sus consejos expertos con los que concebir estructuras fabulosas ...

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.

The Industrial Revolution brought important changes to America. People began migrating to cities for work, and immigrants began to arrive in American in larger numbers than ever before as they looked for new employment opportunities. Readers explore the impact of the Industrial Revolution on U.S. migration and immigration patterns. As readers learn about essential social studies curriculum topics, engaging historical images and detailed primary sources hold their interest. This transformative period in American history comes alive for readers with each turn of the page.