Conservación de la masa (Conservation of Mass)

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

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 ...

Science and safety come together in this very simple book illustrated with bright cut-paper pictures.

Through innovation and imagination, savvy entrepreneur Richard King became a towering figure in the Texas cattle industry. The King Ranch, which continues to flourish today, is a symbol of his enduring legacy.

Desastres naturales (Natural Disasters) is an exciting book about how estimations and predictions help save lives in natural disasters. Students will learn critical math concepts as they are engaged in reading about the properties of natural disasters. Practice problems and mathematical diagrams help students reinforce the importance of mathematics. This Spanish title includes a glossary, an index, engaging images, and easy-to-read text to help students build their math and reading skills.