Dinosaurios, garras y crestas

Humans and animals can also make a great team working together. See how horses and the officers who ride them work together to keep our streets safe.

Learn How Dams And Levees Are Built As Well As The Effects They Have On River Systems In A Region, And Places Downstream.

Everyone has heard of Albert Einstein--but what exactly did he do? How much do kids really know about Albert Einstein besides the funny hair and genius label? For instance, do they know that he was expelled from school as a kid? Finally, here's the story of Albert Einstein's life, told in a fun, engaging way that clearly explores the world he lived in and changed.

Humphrey Carpenter, autor entre otros libros de una biografia del poeta W.H. Auden, narra en esta obra la larga carrera de J.R.R. Tolkien desde las vicisitudes de una infancia dificil a los trabajos y obligaciones de la vida academica, como profesor en la Universidad de Oxford. Carpenter ha escrito esta primera biografia del creador de la Tierra Media, consultando documentos ineditos, y entrevistando a parientes y amigos.

Vivid photographs and bilingual text explain each food group, revealing how each group is important for good health, how to make healthy choices, and fun things children can do to stay in shape.

This nonfiction Spanish book teaches students about the earth’s cycles, and introduces them to important scientific concepts and vocabulary terms like combustion, hydrosphere, biosphere, and fossil fuels. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.