Nuestro Planeta, la Tierra

Oceans cover 70 percent of the Earth's surface, providing students with a variety of plant and animal life to learn about. An ocean biome includes the saltwater below the waves and everything on, above, and near the surface. Students will also learn about the beach, tides, cliffs, bays, coastlines, coral reefs, and tide pools in this Spanish-translated title.

Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the Smithsonian Institution, this Spanish book ignites a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides English language learners through every step of the engineering design process. Inspire students to pursue a STEAM career with career advice from a real person working ...

Deserts are the driest places on Earth, but they’re full of life! Cacti, kangaroo rats, shrubs, foxes, and more have found ways to adapt to the extreme temperatures and dry conditions of deserts around the world. Readers learn about many of these adaptations as well as the major features of the desert biome. Simple maps highlight some of the biggest deserts, helping readers learn map skills. Full-color photographs reinforce accessible information about the desert ecosystem, including a concluding message of conservation.

Más de 80 fotografías, 20 mapas y diagramas en color * En los próximos diez años, el planeta Marte entrará en un periodo de observación excepcional: se aproximará mucho a la Tierra y presentará un brillo y un diámetro aparente sobresalientes, por lo que será fácil observarlo con sencillos instrumentos astronómicos. Con el fin de que los astrónomos aficionados puedan disfrutar al máximo de la actualidad de Marte, esta guía establece de forma clara y concisa cuáles so los conocimientos actuales acerca del planeta rojo y ofrece consejos útiles para una mejor observación a lo...