Azul

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

Texas has had some extraordinary people. This book covers some of them, such as Melinda Gates, astronaut Shannon Walker, and Bessie Coleman, the first African American female pilot. Age-appropriate text teaches readers about Texas's most important movers and shakers, while historical and contemporary images reinforce the book's key concepts.

Because of his physical disabilities, Adriane won't play soccer, that is until his sister's boyfriend shows him how to play and he builds up some self esteem. Original.

A partir de temáticas diferentes pero profundamente conectadas entre sí, los siete ensayos que componen este libro tienen en común un interés básico: «la situación del hombre en el mundo» en estos inicios del siglo XXI. En ninguno de ellos nos referimos directamente a la crítica situación seguramente, prebélica de la hora presente. Sin embargo, las alusiones, las referencias indirectas y las evocaciones históricas permiten una reconstrucción de las etapas del camino que ha seguido y que todavía sigue nuestra cultura hasta llegar a ese estado de cosas. Hemos titulado a este...