¿Por qué celebramos el Día de los Caídos? (Why Do We Celebrate Memorial Day?)

This book presents the theoretical and practical aspects of the Sociocultural Action and it approaches the figure of the socialcheerleader as well as different environments and technical of its intervention. This figure is called to become an important part of groups in different environments and stadiums of the life: childhood, youth, adults.

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Describes what the different track events are, how to warm up for a track meet, and how to compete in a track meet.

Journey through Earth's wet and wild rainforests with vivid photographs of the most unique plants and animals in the world's most untouched forests. Readers are introduced to the importance of protecting the rainforests and vocabulary related to the rainforest and its amazing inhabitants.