Medida del tiempo en las carreras (Timing Races) (Spanish Version)

En el acuario (At the Aquarium) engages students in reading about aquariums as they learn how to calculate volume. Volume helps aquarium designers figure out everything from the shapes and sizes of tanks to how much water is needed to fill them. This nonfiction Spanish text includes mathematical charts to help students practice calculations. With a glossary, an index, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest content.

Carla y su hermano Miguel se acaban de trasladar a París junto a su padre. Miguel rompe accidentalmente un escarabajo de cristal del museo Louvre. A continuación, Carla se despierta, sin saber cómo ni por qué, en el antiguo Egipto de los faraones. La protagonista tratará de encontrar el modo de volver a casa y a su tiempo.

Snouts, spines, or scutes help many animals survive. Information on why is contained in this engaging book.

Find out what sets the human life cycle apart from other living things in this informative, Spanish-translated nonfiction title. With intriguing facts, informational text, and vibrant photographs, children will be introduced to the biological phases of our life cycle--from infancy to adulthood.

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...