Incremento de la energía

Defines levers, 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.

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.

Teach students the significance of the capital of the United States, Washington, DC. This Spanish-translated nonfiction book introduces readers to important buildings and monuments in Washington, DC, and helps students understand the city's importance and connection to American history. Primary source images and supporting text work together to engage young learners from cover to cover.

Sofía and her friends accuse someone of theft based on his appearance, but when the truth comes out, they learn a lesson about passing judgment based on superficial traits.

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 ...

El texto que el lector tiene en sus manos está dotado de una gran carga religiosa polémica pero conteniendo asimismo uno de los relatos más famosos e impactantes de conversión al islam del Mediterráneo occidental. Es un texto agresivo, pero también un texto espiritual. No es una mera obra justificativa de una conversión (¿por qué justificarse al cabo de tantos años?), sino la narración del tránsito de un espíritu, hecha desde los últimos pasos de la vida. El Turmeda escritor de éxito en catalán deja paso al Abd Allâh at-Tarchumân, hombre de éxito en Túnez, para recapitular ...