Tu propio murciélago robot

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

Ponte las gafas 3D y disfruta de las asombrosas imágenes que encontrarás en el interior de este libro. ¡Creerás que estás en el espacio!

Introduce your child to the different types of resources that animals use to survive in the wild in the Spanish children's book Las necesidades de los animales. What are the different kinds of resources that animals use to stay alive? Learn about why animals need food, water, shelter, and more. Spanish Book Features: This Spanish children’s science book features a photo glossary, new vocabulary words, and an extension activity to help develop reading comprehension skills while meeting NGSS life science standards. 24 pages of vibrant photographs About Rourke Educational Media: We proudly...

"Four score and seven years ago..." begins Abraham Lincoln's beautiful speech commemorating the three-day battle that turned the tide of the Civil War. The South had been winning up to this point. So how did Union troops stop General Robert E. Lee's invasion of the North? With black-and-white illustrations throughout and sixteen pages of photos, this turning point in history is brought vividly to life.

Simple text and photographs describe dragonflies, including their physical characteristics, behavior, and life cycle.

Pintor, escritor... Quintanilla representa al artista polifacético de principios del siglo XX cuya apasionante y tormentosa vida se ve dividida entre Europa y Norteamérica. Es aquí donde produce la mayoría de su obra literaria. Sus vastos conocimientos en pintura le orientan a realizar este estudio comparativo inacabado sobre los más representativos pintores, desde el siglo XIV hasta el XIX, enriqueci´ndolo con interesantísimas interpretaciones personales. Ambos volúmenes se presentan en caja.