Benjamin Franklin

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

Which animals and plants can survive in a dry desert environment? Readers learn about the living things that make up desert food chains, including cacti, snakes, and scorpions. Colorful photographs of desert life make readers feel like they’re exploring new parts of this habitat with each turn of the page. Fact boxes provide additional information about the creatures that make up desert food chains, and a detailed food web shows how these food chains all come together. The desert is an extreme habitat, and readers will enjoy learning about the extreme plants and animals that live there.

A partir de una secuenciación de contenidos de Lengua y Literatu-ra, se desarrollan totalmente tres Unidades Didácticas: "El Diccionario, un libro fundamental; "La Descripción: el sustantivo y el adjetivo"; "La Narración: el verbo". Incluye también criterios de evaluación y bibliografía comentada.

Learn how scientists channel energy from the sun to power awesome innovations! This Spanish book features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.