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?
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”
The colorful flowers in Mama's garden reveal a strange-looking creature. "What is it? Does it sting, does it bite?" Join in this photographic journey as the young girl and her mother care for the caterpillar. Watch as it transforms into a chrysalis and then emerges as a beautiful monarch butterfly. How can the young girl "claim" the butterfly as her own but still let it go free?
Step back in time and follow dinosaur tracks around the world. Whether made by a few dinosaurs or large groups, these tracks provide clues to the movement and behavior of these lovable ancient creatures. What dinosaurs made the tracks and what do scientists think they were doing when they made them? The author tells the story in rhythmic rhyme that may be sung to the tune of Over the River and Through the Woods.
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 brief introduction to the long-necked Apatosaurus, highlighting its size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable Apatosaurus fossils.
A brief introduction to the armored Stegosaurus, highlighting its size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable Stegosaurus fossils.
A brief introduction to the horned Triceratops, highlighting its size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable Triceratops fossils.
A brief introduction to the speedy Velociraptor, highlighting its size, habitat, food sources, and demise. Also included is a virtual field trip to a museum with notable Velociraptor fossils.
A simple exploration of tornadoes, examining how these spinning storms develop, how scientists watch for them and measure their strength, and the damage "twisters" can cause.
A simple exploration of hurricanes, examining how these massive sea storms develop, how scientists watch for them and measure their strength, and the damage hurricanes can cause.
A simple exploration of clouds, examining how these large masses of water vapor develop, the different forms they take at varying altitudes, and the problems clouds can cause.
A simple exploration of snow, examining how these icy flakes of precipitation develop, the ways in which snow can be used and enjoyed, and the problems snow can cause.
A simple exploration of thunderstorms, examining how these warm-weather storms develop, the relationship between lightning and thunder, and the damage thunderstorms can cause.
A fundamental exploration of battleships, including their size and firepower, history of development, gun turrets and other features, and famous models from around the world.
A basic introduction to beetles, examining where they live, how they grow, what they eat, and the unique traits that help to define them, such as their ability to make sounds or glow.
A basic introduction to ants, examining where they live, how they grow, what they eat, and the unique traits that help to define them, such as their tirelessly hardworking behavior.
A basic introduction to cockroaches, examining where they live, how they grow, what they eat, and the unique traits that help to define them, such as their ability to hold their breath.
A basic introduction to ticks, examining where they live, how they grow, what they eat, and the unique traits that help to define them, such as their ability to swell with blood.
