Un Niño Perdido

Practice nonstandard measurement at the zoo! This exciting, Spanish-translated title encourages readers to practice measuring their favorite zoo animals, such as elephants, giraffes, pandas, and more. A gorilla weighs the same as three men! When a cheetah runs, its stride length is the length of three men! An elephant weighs the same as three pickup trucks! Vivid images, fun practice questions, early STEM themes, and helpful mathematical diagrams make nonstandard measurement entertaining and easy for children to understand.

¿Te apuntas a conocer el lado más animal de la historia? ¿Sabías que uno de los actores más famosos fue un perro? ¿O que las composiciones más populares de Mozart las inspiró un pajarito? ¿Y que hay un coronel en el ejército noruego que es, en realidad, un pingüino? En este libro descubrirás las historias reales de un montón de criaturas, peludas, de plumas y con escamas, que nos sorprendieron salvando vidas, creando obras de arte o porque cambiaron el rumbo de la humanidad. En definitiva, nos ayudaron a hacer del mundo un lugar mejor.

Describes various situations that demonstrate ways to make friends and the importance of being a good friend.

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.