Diario de una ausencia

Existen los fantasmas? ¡Viaja al medio oeste de Estados Unidos y deci ́delo tu ́! Explora los rincones de la mansio ́n Lemp, atraviesa el cementerio de Bachelor's Grove y recorre el castillo de Franklin. ¡Te espera una aventura espeluznante!

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

Plants are the living things that have been on the planet longer. How do they manage to protect themselves if they can't move? Explore the different mechanisms that plants use to survive in different habitats.

Did you know that nature is the world's largest science and engineering lab? Learn how designers and engineers use biomimicry to create or improve products. This title supports NGSS for Engineering Design.