Lo que los fósiles nos enseñan sobre la Tierra (Investigating Fossils)

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

If asked to define a forest, readers might say, "It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive. 32pp.

Take a trip to the city and practice addition! This charming title follows the story of a family who visits the city for the day, discovering how many ways addition and early STEM skills are a part of transportation and daily life. Students will add ticket prices, travel times, passengers, taxis, and more! Vibrant images, fun practice problems, and helpful mathematical charts help young readers practice addition and early STEM themes. This book makes addition fun and encourages children to see what they can add in their daily lives!

Todos los secretos sobre los astros y su influjo sobre nuestra vida y nuestras emociones. La Luna es una maestra de los ciclos vitales. Al igual que ella, todo se transforma, oscila y cambia irremediablemente. Y, como ella, no puedes escapar del constante juego de luces y sombras. Todos los ámbitos de tu vida tienen su noche. Tus relaciones, tus actividades, tu mente y tus emociones atraviesan periódicamente una fase oscura. Este libro te mostrará que todos los ciclos siguen el modelo de las fases de la Luna. Si comprendes el periodo natural de las cosas, tendrás un mapa del tiempo....

CADENA HUMANA, novísmo poemario del Nobel irlandés Seamus Heaney, es, sin duda, la culminación de su obra. Esto significa, simplemente, que haya alcanzado una meta trazada, deseada, soñada, avizorada, calculada o labrada con suma delicadeza y esfuerzo. Además de lo anterior, el autor ha conseguido ahora, en particular, demostrar una notable congruencia con lo que siempre ha pensado, sentido, dicho. Nunca se ha cansado de insistir en que la forma es tanto el ancla como el barco, es decir, debe lograr la perfecta armonía con lo expresado en el poema. En Cadena humana no hay una estructura ...