La Sierra de la Demanda

El agua brota salvaje de los verticales paredones rocosos que ocultan, bien protegidos por la apretada sombra de dilatados y extraordinariamente bellos hayedos, el mundo mágico de las cuevas y txabolas que han cobijado a carboneros y pastores desde la historia, cuando concebían dólmenes y menhires bajo la aguda mirada de las águilas reales y los quebrantahuesos. Una apasionante mezcla de deliciosa riqueza natural y interesantísima huella humana que cautivará profundamente al viajeroen las cuatro estaciones.

Know Your NumbersFind the hidden numbers in these exciting counting books. Count by ones, twos, fives, and tens!

In the last one hundred years, Earth’s average temperature has risen one full degree. That might not sound like much, but it affects Earth’s oceans, land, plants, and animals. Learn all about global warming, the carbon cycle, the greenhouse effect, and weather and climate with this Spanish science reader that brings the power of science and informational text to students at a level they can understand. This nonfiction book introduces students to new concepts, vocabulary terms, and STEM topics. With detailed images and fascinating sidebars, the leveled text supports students reading at...

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.