Lo que los fósiles nos enseñan sobre la Tierra (Investigating Fossils)

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

Animals do not brush their teeth, but they still have ways to keep their teeth clean. Read to find out how. Paired to the fiction title Going to the Zoo.

¿Cómo es tener a una profetisa como abuela? Ella Robinson lo sabe. Su abuela era Elena de White. En este libro, Ella cuenta cómo era Elena de White como abuela y como persona. Aunque Dios le dio grandes responsabilidades a la Sra. White, aun así encontraba tiempo para ser la clase de abuela con la que cualquier niña soñaría. Sabía que una niñita cansada disfrutaría de una manzana, una pastilla de menta o de ser ayudada a recortar una ilustración de una revista. Robinson también relata experiencias interesantes de la vida de la Sra. White. Cuenta cómo Dios escogió a Elena de...

Nueva traducción, acompañada de un completo estudio introductorio y un amplio cuerpo de notas, de esta obra de madurez en la que Cicerón analiza cuestiones de ética filosófica que, a juicio de su autor, pueden ayudar al lector a hacer más llevadera la tempestuosa travesía de la vida.

The Earth is a remarkable place! In the universe, Earth is the only place that we know for sure has life and non-life. Learn all about interdependence in ecosystems 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 oxygen cycle, stimuli, homeostasis, and micro-organism with this nonfiction book that is aligned to state and national standards. The leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity...