Marshall, John

John Marshall's life had fallen apart. His seventeen-year-old son was about to leave home, his fourteen-year-old daughter was lost in cyberspace, his marriage was falling apart. He dreamed of a trip around the world and a chance to leave all of his routines and responsibilities behind if only for a little while. But a trip like this was unaffordable unless they volunteered their time as they traveled. The Marshall family took their trip around the world and it changed their lives. From Central American to East Asia the trip offered little rest, even less relaxation, but it gave the Marshalls a once-in-a lifetime opportunity to conquer their personal fears, strengthen their family bonds and find their true selves by helping those in need.

Provides information about water, answering such questions as "Why does the water in the bathtub rise higher when you get in?" and "Why do some things sink and some float?".

Describes the nature of energy, where it comes from, and how it can be used.

Briefly describes the concepts, measurement, and laws of motion.

Text and photographs provide information for young readers about the scientific concepts of force, gravity, and friction.

Expalins the relationship between energy and work, as defined scientifically.

Describes simple machines and how they work, including the inclined plane, levers, wheels and axles, the wedge, screws, and pulleys.