La resolución de problemas

Introduces the concept of heat, how it's created, how it affects materials around it, and how heat is used.

The fascinating and glamorous world of fashion intrigues kids and adults alike. Young readers will learn how their favorite designers relied on hard work and talent to become the superstars they are today.

Learn about the rich history of Mission San José: how it started, the people who ran it, the indigenous population, and its legacy today.

Got a fan of snakes, lizards, and turtles? Dig into this beginner's guide to reptiles from Cathryn and John Sill, creators of the award-winning About... series. Author and educator Cathryn Sill explains in simple language the basic characteristics that all reptiles share, while offering a look at many of the animals that fall into this diverse category, including ever-popular lizards, snakes, and turtles. The beautifully detailed paintings of noted wildlife illustrator John Sill depict reptiles in their habitats and highlight their unique aspects. An afterword provides more detail on each...