Salvar el medioambiente / Saving the Environment

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Ants are known as one of nature's hardest working animals. Their strength and persistence in bringing food to their colonies have been well documented. Now, beginning readers have a chance to learn about some of the littlest bugs in this volume written just for them. Complete with information about what ants eat, how they live, and generally how they stay so busy, this book is a must-have to satisfy the curiosity of your youngest naturalists. Eye-catching and unique photographs complement the low-ATOS text and aid in comprehension.

Simple text and pictures introduce facts about snowplows and tells what they are used for and why they are important.

In this Spanish title, explore what stunt people do to prepare and keep themselves safe during their dangerous stunts.

Más de 150 fotos y textos sencillos para descubrir de dónde salen los alimentos que compramos en las tiendas.