La tierra y la importancia del agua

How does a frog grow? Beginning as a tiny egg and then a tadpole, a frog stays mostly in the water until it is fully grown.

What does it take to build an amazing sandcastle? The answer is: more than you think! Take students on a fun exploration of the properties of sand and factors that influence sandcastle construction such as moisture and sunlight. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It 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 Smithsonian...

In 1789, George Washington became the first president of the United States. With over 100 black-and- white illustrations, the fascinating story of "the father of our country" comes to life in Spanish - revealing the real man, not just the face on the dollar bill!

Un libro pionero que explica a los niños y no tan niños todos aquellas cuestiones relativas al cuerpo que suelen pasar desapercibidas en los libros de anatomía o fisiología: cirugía plástica, género, cyborgs, racismo, fecundación artifical y otros temas que articulan lo social y lo corporal son presentados aquí de forma directa y sin prejuicios a lectores de nueve años en adelante.