La compra de Luisiana (The Louisiana Purchase)

Swamps are one kind of wetland biome. Like other wetland biomes, a swamp’s water must be clean in order for the wildlife in it to thrive. Readers learn the main features of both freshwater and saltwater swamps, as well as where some of the biggest swamps are on Earth. Science curriculum topics such as food chains and conservation make the main content a great complement to classroom learning. Full-color photographs and inset maps aid readers in identifying this interesting biome in the world around them.

Every living thing you see is made up of tiny cells. Each of these cells has its own job to do. They work together to do everything an organism needs to stay alive. That's why biologists often call them the "building blocks of life." Learn all about plant and animal cell theory and structure with this Spanish science reader that brings the power of science and informational text to students at a level they can understand. Introduce students to STEM topics and new vocabulary terms like osmosis, diffusion, organelles, and active and passive transport with this nonfiction book that is aligned to ...

Think you'd like to be a fire fighter? Learn about the special equipment fire fighters use, their role in community safety, and their lives at the station. This book features a comprehensive timeline of the history of firefighting from its origins in ancient Rome through firefighting practices of today plus vocabulary related to fire fighters and fire safety.

One Direction es una de las bandas más divertidas y más famosas de todo el Reino Unido. ¿Te considerás un/a verdadero/a directioner? ¡Vení a leer esta enciclopedia y enterate absolutamente todo sobre tu banda favorita de la A a la Z!

Tras asomarse al futuro y ver el negro panorama que espera a nuestro planeta, Natalia y Mayden deben concienciar a la gente de la importancia de colaborar entre todos para evitarlo. Gaia, la Tierra, no puede seguir soportando la desaparición de especies y la invasión de plástico. Pero los negacionistas, liderados por los youtubers Magufa y Camelo, van a tratar de evitarlo ridiculizándoles en sus vídeos. ¿Cómo serán capaces nuestros amigos de frenar la catástrofe medioambiental? Los autores cuentan con más de 14.500.000 suscriptores en YouTube.