Cómo funcionan los ecosistemas

When many think of the Constitution, they think of the Founding Fathers: Thomas Jefferson, John Adams, Benjamin Franklin...but neither Jefferson nor Adams even signed it. Facts like this will surprise readers, while further information will enlighten them about both the crucial document called the U.S. Constitution as well as about its creation and ratification. This essential volume is a significant addition to any elementary social studies collection.

XVI Premio Anaya de Literatura Infantil y Juvenil, 2019 Premio Fundación Cuatrogatos 2020 Una historia introspectiva sobre el amor adolescente, el dolor, la amistad y los celos. Marina ha descubierto que su corazón ya no le pertenece, ya no es dueña de él. Se ha enamorado de Eugenio, el chico con el que sale, y poco a poco va descubriendo que tampoco es dueña de sus actos. ¿Por qué se va alejando de sus amigos? ¿Por qué Eugenio impone siempre su voluntad? La brusca ruptura de la relación complicará aún más las cosas. ¿Podrá vivir con el corazón devorado por serpientes?...

Divided by period, this illustrated catalog introduces children to over 40 different kinds of dinosaurs. The index makes finding the species effortless.

It doesn't take a lot to conserve electricity. Taking action can be as simple as turning off the lights when you leave a room or using "people power" instead of cars to get around. Kids learn this and more about what they can do to help in 10 Things I Can Do to Save Electricity. Now in Spanish.