Experimentos con la luz

Estaa lleno de imagenes bellas e interesantes que les enseanan a los nianos todo sobre estos animales asombrosos.

We use machines every day, but most of us don't understand how they work. When they break down, most of us have no idea how to fix them. Mechanics are the masters of machines. Readers learn that mechanics work on vehicles, including cars, boats, and buses. They use special tools to take them apart and fix what's wrong, and they use their experience and technology to diagnose problems. They often work long hours, sometimes in bad weather, to get us where we need to go. Your readers will see that mechanics keep our world moving and growing.

The rhymes, verses, songs, and riddles in this playful book are designed for children who cannot get enough of word games. Beautiful illustrations bring humor and laughs to every page. Los niños que disfrutan de los juegos de palabras gozarán de las rimas, los versos, las canciones y las adivinanzas en este libro juguetón. Bellas ilustraciones traen humor y carcajadas a cada página.

Examines the nature of circles and spheres, including their properties, how they are related, and where they appear in nature.