Mascotas alrededor del mundo

Snow falls when it is cold. Find out all the different ways snow can fall during cold weather. Paired to the fiction title Building a Snowman.

Many things can be found in the woods. Some you need to watch out for. Find out about what can be found in the woods. Paired to the fiction title Billy’s Camping Trip.

Snow falls when it is cold. Find out all the different ways snow can fall during cold weather. Paired to the fiction title Building a Snowman.

La historia de la ciencia no es ni más ni menos que la historia de nosotros, los seres humanos, tratando de entender y explicar el universo que nos rodea. Y, como nosotros mismos, es contradictoria, misteriosa, intrigante, traicionera, ambiciosa, valiente y, por momentos, insólita. En este libro vas a conocer a personas curiosas, perseverantes, observadoras, testarudas e ingeniosas, y vas a acercarte a los caminos que las llevaron a descubrimientos increíbles, errores catastróficos y, sobre todo, a hacerse nuevas preguntas. La historia de la ciencia está llena de sorpresas, personajes y...

La ratita Tecla deja su casa en la gran ciudad para visitar a su amiga Flora, que vive en una hermosa pradera. Las dos esperan pasárselo a lo grande, pero Tecla descubrirá pronto que el campo no es un lugar tan tranquilo como parece a primera vista.

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!