Las Súper Ratas de Bart

Even the smallest tide pools are actually entire ecosystems! The creatures that call a tide pool home are connected through food chains that represent the passing of energy from one living thing to another. Readers discover how these unique food chains all come together as they view a helpful tide pool food web. Fun fact boxes accompany informative text about life in a tide pool. Detailed photographs of tide pool ecosystems introduce readers to a variety of cool creatures.

Introduces Iran, including the geography, people, education, rural and urban life, housing, food, work, and amusements, along with other information about the country.

La mitología y el reino de los seres vivos se unen en esta nueva entrega de la serie de ASTROMITOS de Carlos Pazos, creador de Futuros Genios. Plantas y animales que deben sus nombres a los mitos más conocidos o fascinantes pueblan las páginas de este libro. ¿Cuánto de nuestro ADN compartimos con los chimpancés? ¿Qué se esconde en el fondo del mar? ¿Cuántas formas puede adoptar el diablo? Encuentra las respuestas a todas estas preguntas en Biomitos y... nunca volverás a ver el planeta Tierra de la misma manera.

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process, from the initial research and brainstorming sessions, through the design and testing ...