¡Sin resolver! Lugares misteriosos

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports. This 6-Pack includes six copies of this title and a lesson...

Read Along or Enhanced eBook: Invite readers to see what goes on behind the scenes at a school carnival! With informational, Spanish-translated text, vibrant photos and helpful charts, children are engaged from cover to cover while utilizing mathematic skills to learn the basics of planning, income, estimates, and budgeting.

Introduces the concept of heat, how it's created, how it affects materials around it, and how heat is used.

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!

Esta primera novela de Fernando Claudín es un relato breve pero de una intensidad y hondura tales que sobrecogerá al lector y lo hará reflexionar sobre algunos de los grandes problemas pendientes de nuestro tiempo.

Bajo este nombre escondió su prueba de amor a la belleza de la poesía esta chilena, ciudadana del mundo y amante de suprimir fronteras. Su inspirada lírica de sentimientos intensos la ha convertido en un símbolo para los anhelos ideales de todo el mundo latinoamericano. Premio Nobel 1945.