¡Tornados y huracanes! (Tornadoes and Hurricanes!) 6-Pack

Examines the nature of human rights, including the gradual development of the idea that all people, regardless of gender, color, or wealth, are citizens with rights, not just subjects with duties, and discusses the growth of social rights and the case against torture.

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

Discover Dinosaurs Spanish Edition. Dinosaurs were reptiles that lived millions of years ago. It was a long time before there were any people on the earth. Scientists have looked at dinosaur bones and found out many things about what they were like. Nobody knows why the dinosaurs disappeared. People have made pictures to show what they might have looked like. What do we know about dinosaurs?

Siempre está encima de nosotros y por eso parece que lo sabemos todo sobre él, pero el cielo encierra un tesoro escondido: el secreto del tiempo y el principio de todo. Mirar hacia arriba en busca de estrellas y planetas se convierte así en un viaje increíble en busca de los límites del Universo hasta llegar al Big Bang, la explosión que dio origen a todo. Su destello de luz ha llegado hasta nosotros como una voz del pasado. Escuchándola, descubriremos que estamos hechos del mismo material del que están hechas las estrellas, que nacen, brillan y mueren, como nosotros. En este...