Matemáticas en Marte (Math on Mars)

The asteroid belt between Mars and Jupiter is an intriguing area of our solar system. Scientists have counted over 670,000 known asteroids there, but there could be millions more not yet found. Readers will discover much more about the asteroid belt in this highinterest book, which blends science and math. They'll read about several topics, such as space missions to the asteroid belt and the difference between an asteroid and a planet, and solve associated math problems-just like actual space scientists do!

El mundo está lleno de cuestiones científicas y técnicas que parecen sacadas de un universo de ciencia ficción. Pero... ¿se suponía que iba a ser así? Los científicos nos prometieron coches voladores, turismo espacial y robots superinteligentes. Pero aunque vemos avances en todos esos campos cada día, la realidad es ligeramente distinta. En este libro se habla de ese futuro prometido y de dónde estamos: del origen de internet, de los primeros ordenadores y hackers y de la carrera espacial, con explicaciones e ilustraciones fáciles de entender. Sin olvidar la importancia de la...

¡Averigua cómo era la vida a bordo de un barco pirata con este libro tridimensional y sus piezas extraíbles!

Introduces the geography, history, religion, government, economy, and culture of one of the poorest countries in the western hemisphere.

When election season starts, the race is on! But what do campaigns, candidates, polls, and the Electoral College have to do with voting for our nation's leaders? Using engaging, age-appropriate language and colorful photos, readers decipher the complex electoral process and learn how to get involved in the next election. Fully translated Spanish text.