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Discover That There Are 6000 Different Kinds Of Dragonflies Because They Are Predators, How Their Body Is Made Up, And How They Reproduce.

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. They’ll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Don’t worry, they’ll be happy to learn that (hopefully) we have millions of years left!

Introduces readers to amphibians and the concept of classes of animals. Simple text describes the common features and behaviors of amphibians as well as offering many examples of creatures in this group.

Un día el hombre creó, a partir de piedras y palos, su primera herramienta, y desde ese día comenzó a transformar el mundo con su trabajo. Lo que primero fue piedra más tarde sería martillo, así como las cavernas se convirtieron en rascacielos. La historia es una lección de humildad. Los hombres y mujeres que aprendieron del pasado y pudieron soñar y construir un futuro mejor fueron aquellos que no se vivieron como individuos aislados, sino formando parte de una gran tarea colectiva: la aventura de la humanidad.