Productores y consumidores (Producers and Consumers)

Imagine being lost and stranded in the desert. Would you know what to do to survive? This useful Spanish-translated nonfiction title explains the important skills needed to survive in the desert. With helpful diagrams and images, definitions, tips and instructions, informational text, a bibliography, and a list of other helpful websites, readers can be assured that they will learn about the dangers of heat exhaustion, desert plants that could aid in survival, and other helpful tips in order to survive in an emergency.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

What does the sun do for us other than give us light during the day? It gives us warmth, energy, and so much more! Learn all about the sun in this Spanish-translated book.

Mysterious ancient ruins, hidden deep in the jungle of southern Mexico In May 1840, explorers John Stephens and Frederick Catherwood road their mules along a steep, muddy jungle path. They were hoping to find the ruins of an ancient, deserted site in Mexico they knew only from visitors’ accounts. Through the trees, they spied the remains of a crumbling stone palace. Palenque! In the weeks they spent there, the men discovered intricately designed buildings and mysterious glyphs, or symbols. Who built this city? What did the glyphs mean? The questions remained largely unanswered until the...

Una recopilación a lo grande de los Súperchistes más tronchantes para partirse de risa. ¿Estás harto del cole? ¿Viajar en familia te resulta mortalmente aburrido? ¿No le encuentras la gracia a hacer deporte? ¿Te pasas el día haciendo el ganso y crees que los adultos tienen malas pulgas? ¡Lo que tú necesitas es una súper súper dosis de los chistes más tronchantes para partirse de risa!

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

Prepárate para conocer los datos más curiosos sobre ciencia, historia y naturaleza, y hazlo con mucho humor y todo el rigor de National Geographic. ¿Por qué necesito comer? ¿Por qué juegan los animales? ¿Por qué eran comunes las pirámides en el mundo antiguo? ¿Por qué las pelotas de fútbol americano no son redondas? En este libro, encontrarás más de 1 111 fascinantes respuestas a preguntas sobre cosas que todos los niños quieren saber. Desde el clásico «¿por qué el cielo es azul?» hasta cuestiones más insólitas, como «¿por qué es imposible cavar un hoyo que atraviese...