Cómo utilizar imanes (Using Magnets)

A finales del porfiriato tuvo lugar un movimiento que despertó el interés del mundo entero, la Revolución mexicana. Parteaguas de los conflictos que más tarde recorrerían Latinoamérica, rápidamente se convirtió en uno de los momentos más apasionantes de la historia de México. Mediante un fino análisis -que da cuenta del carácter perdurable que ha convertido a Zapata y la Revolución mexicana en clásico para estudiar la Revolución-, John Womack nos ofrece un brillante relato en torno a una de las figuras más representativas de la Revolución, Emiliano Zapata. Líder de la...

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

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...

Lara Finch lives a lie. Everyone thinks she is happily married to the faithful Sam. She is actually super bored and misses working. Behind Sam's back, she takes a job in London. Twice a week she takes the sleeper train, where she meets Ellen and Guy. One Friday, Lara disappears from the train without a trace. Her friend Iris does not believe the official story she is told about the disappearance and decides to start her own investigation. Iris cannot believe what she finds out.