Las cadenas alimentarias en el desierto (Desert Food Chains)

Go for the goal with this text, which examines fascinating female sports heroes who’ve proved to the world that gender is no barrier to athletic success. Readers will delight in learning about the lives of Mia Hamm, Wilma Rudolph, and the Williams sisters, as well as other important women who’ve broken barriers in sports. Readers will be inspired to pursue a career in athletics after learning about how others have achieved success in spite of great obstacles. The biographical nature of the text supports social studies curricula, and fact boxes and a comprehensive timeline provide...

Unexpected occurences have always caused panic, but explorers and scientists seek to find answers and explanations.

Saturno Airlines es la nueva aerolínea de Cristian Cipriani y la única que te ofrece viajar a destinos tan exclusivos como tu alma, tus deseos ocultos y tus sueños más descabellados. Saturno te permite viajar solo o con un acompañante especialmente elegido para cada trayecto, el equipaje debe ser ligero, sólo lo que puedas cargar contigo pues no queremos que tu viaje se vea estropeado por pesos innecesarios y lastres inútiles. Saturno Airlines te brinda una atención personalizada que te permitirá realizar cada trayecto con confianza y tranquilidad. ¡No esperes más, ven a hacer el...

Escritor, docente y periodista, Silveyra rescata de la propia escuela "semillero de historias y anécdotas" lo mejor del folclore infantil y lo vuelca en estas páginas, colmadas de ingenio y buen humor.

A 2014 survey by the Substance Abuse and Mental Health Services Administration showed that 8.7 million youths ages twelve to twenty reported drinking alcohol beyond “just a few sips” in the previous month. Those who start drinking before age fifteen are five times more likely to become dependent on alcohol than those who begin at twenty-one. This resource shows young people how to help a friend who is abusing alcohol. It arms them with facts about alcohol, how it affects the teen mind and body, how to look for signs of a problem, and how to bring others on board to help.