Conservar y restaurar papel

La experimentación es la base de la ciencia, esencial para llegar a comprender por qué y cómo pasan las cosas. La propuesta de experimentos de este libro permite iniciarte en el mundo de la experimentación científica en los campos de la electricidad y magnetismo, el aire, la densidad de los cuerpos, fuerzas y presiones, y el calor. Cada experimento se estructura de una forma similar que responde a cuatro preguntas: ¿Qué queremos demostrar? ¿Qué necesitamos? ¿Cómo lo hacemos? ¿Por qué y qué ha pasado?, y requieren de material sencillo y al alcance de todo el mundo. .

Pura Belpré Illustrator Honor 2018 ALA Notable Children's Book 2018 New York Times/New York Public Library Best Illustrated Children's Book of 2017 Barnes & Noble Best Book of 2017 Smithsonian Top Ten Best Children's Book of 2017 Frida Kahlo y sus Animalitos, written by Monica Brown and illustrated by John Parra, is based on the life of one of the world's most influential painters, Frida Kahlo, and the animals that inspired her art and life. Brown's story recounts Frida's beloved pets—two monkeys, a parrot, three dogs, two turkeys, an eagle, a black cat, and a fawn—and playfully...

The Suicide Shop, set in a futuristic world, is about the Tuvache family who sells the means for people to kill themselves (ropes tied for hanging, poison in bottles, and more). Mishima, Lucrece, and their children Vincent, Marilyn, and Alan are in the business to help others, though they cannot personally use any of their products. When asked why not, their mother replies that Ive told you a hundred times: because its impossible. Whod look after the shop? However, the parents have tried out one item and greatly regret this decision for most of the book. You see, they tested a condom with a...

Uncovers the secret codes that different animal species use to relate to each other, revealing that communication among certain animals is not different from human communication.