Barcelona XXI siglos

"Simple text and photographs present motorcycles, their parts, and how riders use them; in both English and Spanish"--Provided by publisher.

Which things move slowly? Read this book to find out about how and why things move slowly. Books in this series introduce children to simple forces. Each book uses simple, repetitive text to teach children basic vocabulary, and includes stunning photographs that show how different forces are at work in the world around us. In Slow, children learn about things that commonly move slowly, how pushes and pulls can make something move slowly, and how some things are slower than others.

Dentro de tu cabeza, el cerebro es como un director de orquesta. A partir de las órdenes que envía ¡podrás descubrir cómo funciona el cuerpo por dentro! ¡Levanta las solapas de esta guía visual con curiosidades y anécdotas para descubrir cómo trabaja el cuerpo POR DENTRO!

Describes where fossil fuels come from, their uses and forms, the harm they cause to the environment, and sources of renewable energy.