Lágrimas de sangre

Helps students successfully pass written and oral examinations, offering techniques for memorizing, creating, and summarizing all kinds of texts.

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Two books in one, this oversized volume shows readers the plants, root systems, insects, fossils, animals, mines, gems, minerals, and man-made wonders such as tunnels, subways, submarines, pipes, cables, and power lines that can be found underground or underwater in an unforgettable visual way. Each page takes you deeper and deeper under the waves or through layers of earth.

¿Por qué las huchas tienen forma de cerdito? Si todos los billetes cuestan lo mismo, ¿por qué valen diferente? ¿Qué es el trueque? Aprender a tomar decisiones, a negociar (sí, ¡el intercambio de cromos en el patio es la primera y más dura de las transacciones a las que nos enfrentamos!), a entender la diferencia entre precio y valor es fundamental. Este libro ilustrado nos muestra de una forma muy dinámica, divertida y eficaz las claves básicas para aprender a gestionar la paga y entender qué es el dinero. ENGLISH DESCRIPTION Why are piggy banks shaped like pigs? If all bills cost ...