Cuando un niño decide construir una fortaleza en el patio posterior, el abuelo viene a ayudarle. Pero no pueden hacerlo solos—reciben la ayuda de las seis máquinas simples: la palanca, la polea, el plano inclinado, la rueda y eje, el tornillo, y la cuña. Dicha en rima acumulativa, los lectores seguirán el proceso de construcción hasta el final y descubrirán la sorprendente razón por la cuál fue hecha.
Los zoológicos son lugares impresionantes para ver y aprender acerca de muchos animales nativos y exóticos que habitan este mundo. Algunos animales viven tranquilos mientras otros son amenazados o están en peligro de extinción. Los trabajadores de cuidado de animales del zoológico no sólo alimentan y cuidan a estos animales, pero también ayudan a conservar y proteger especies en su totalidad a través de programas de reproducción y de “cómo sacar ventaja”. Sigue en este diario fotográfico, la extraordinaria rutina de estos trabajadores de cuidado que te lleva “detrás de cámaras”
After begging for a pet, a child's mother finally says "yes." But which animal will be the best pet? Using animal classification and habitat needs, the child narrows it down from Kingdom Animalia, through invertebrates to vertebrates. Reptiles and amphibians are out, and birds and fish are soon off the list. That leaves mammals, but which one? An elephant won't fit through the door, and a tiger would be too hard to walk. What's a child to do?
Travel deep into the ocean way below the surface and you'll encounter some creatures you never knew existed! This book takes you on a journey through the dark depths of the sea towards the ocean floor. Most ecosystems need sunlight, but deep in the ocean where the sun doesn't shine animals have adapted some very interesting ways to see, protect themselves, and eat. Discover the unique habitats, adaptations, and food chains of these deep -sea creatures.
When a young child decides to build a fort in the backyard, Grandpa comes forward to help. But they can't do it alone--they get help from the six simple machines: lever, pulley, inclined plane, wheel and axle, screw, and wedge. Told in cumulative rhyme, similar to The House That Jack Built, readers follow the building process to completion and discover the surprise reason it was built.
Las coloridas flores en el jardín de mamá ponen al descubierto una rara criatura. ¿Qué es? ¿Pica? ¿Muerde? Únete a este viaje fotográfico mientras una niña y su mamá cuidan a una oruga. Observa mientras se transforma en una crisálida de donde más adelante, saldrá - una hermosa mariposa Monarca. ¿Cómo puede una niña joven “afirmar” que le pertenece y aún así, dejarla libre?
Regrésate en el tiempo y sigue las huellas de dinosaurios en todo el mundo. Ya sean hechas por unos algunos dinosaurios o en grandes grupos, estas huellas ofrecen pistas sobre el movimiento y el comportamiento de estas adorables y criaturas del pasado. ¿Qué dinosaurios hicieron las huellas y qué piensan los científicos que los dinosaurios las estaban haciendo cuando las dejaron?
Samantha BellDespués de rogar por una mascota, a un niño finalmente le dicen que “sí”. Ahora, es el momento de seleccionar a la mascota perfecta, pero ¿cuál será? Comenzando con el Reino Animal, el niño recorre varias clasificaciones de animales para tratar de escoger al mejor. Las medusas son limpias, pero mamá le dice que escoja un vertebrado. Los reptiles y los anfibios están descartados y las aves y los peces pronto lo estarán también. Esto sólo deja a los mamíferos, pero ¿a cuál? Un elefante no cabría por la puerta y un tigre sería muy difícil de sacar a pasear. ¿Qué puede hacer este niño?
Zoos are amazing places to see and learn about the many native and exotic of animals that inhabit this world. Some animals are plentiful while others are threatened or in danger of extinction. Zookeepers not only feed and care for these animals, they may also be helping to conserve and protect whole species through breeding and "head start" programs. Follow the extraordinary duties of these unusual animal helpers in this behind-the-scenes photographic journal.
La zarigüeya Zara está buscando un nuevo hogar para criar a sus bebés que pronto nacerán. A lo largo del camino, se encuentra una gran variedad de animales diurnos y nocturnos. Ella aprende cómo construir y vivir en telarañas, nidos, colmenas, caparazón, madrigueras, refugios, cuevas, e incluso en los hoyos. Mientras que estos hogares son perfectos para otros animales, no son los adecuados para ella. ¿Cómo encuentra Zara un hogar? ¿Lo encontrará a tiempo?
A brief introduction to the flying pterodactyls, highlighting their size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable pterodactyl fossils.
A brief introduction to the fearsome Tyrannosaurus rex, highlighting its size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable T. rex fossils.
A simple introduction to the Boston Red Sox major league baseball team, including its start in 1901, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Baltimore Orioles major league baseball team, including its start in 1902 as the St. Louis Browns, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Los Angeles Dodgers major league baseball team, including its start in 1884 in Brooklyn, its World Series triumphs, and its stars throughout the years.
A simple introduction to the New York Mets major league baseball team, including its start in 1962, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Cincinnati Reds major league baseball team, including its start in 1869, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Toronto Blue Jays major league baseball team, including its start in 1977, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Chicago Cubs major league baseball team, including its start in 1876, its World Series triumphs, and its stars throughout the years
A simple introduction to the St. Louis Cardinals major league baseball team, including its start in 1882, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Miami Marlins major league baseball team, including its start in 1993, its World Series triumphs, and its stars throughout the years.
A simple introduction to the San Francisco Giants major league baseball team, including its start in 1883 in New York, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Chicago White Sox major league baseball team, including its start in 1900, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Los Angeles Angels of Anaheim major league baseball team, including its start in 1961, its World Series triumphs, and its stars throughout the years.
A simple introduction to the Minnesota Twins major league baseball team, including its start in 1901 as the Washington Senators, its World Series triumphs, and its stars throughout the years.
