Guts sound gross, but you couldn't survive without your digestive system. These are the organs that break down the nutrients that provide energy for the body.

Run, walk, skip, dance, or swim and you are moving your body's hundreds of muscles. Young readers will learn how groups of muscles work together to achieve movement.

The nervous system is the control center for the body. Enter it and learn how the brain, spinal cord, and nerves keep track of and control all of the other systems.

Do the names Tony Hawk, Steve Caballero, and Tony Alba sound familiar? They should! They are the names of professional skateboarders that made the sport famous by performing difficult and complex tricks that amazed skateboarding fans around the world.

When people first started riding skateboards in the 1950s, there were no special places for them to skate. Because of this, skateboarding was done mostly on sidewalks and streets. This all changed with the creation of skate parks.

Did you know that the first skateboards were built by kids, not inventors? Adults eventually improved the design and mass-produced them to satisfy the need for this growing sport. Through full-color photos and detailed chapters, this book tells the story of how skateboards become the works of art that skaters use today.

Skateboarding is not only a fun sport, it can also be competitive. There are many amateur and professional contests held throughout the country to recognize and award top skaters whose skill and ability is phenomenal.

Skateboarding would not be the bold and daring sport it is today if skaters could only skate on flat surfaces all day. Luckily, past skaters thought of this and created obstacles like half-pipes and ramps.

Have you ever seen a professional skateboarder perform a trick and wondered how they did it? This book tells you how! From the simple maneuvers like pushing off, to more complicated tricks like kickflips, this book provides step-by-step instructions and pictures for beginners to complete each skateboarding move.

Hurricane Katrina was a 2005 natural disaster whose repercussions will be felt for many years to come. This book highlights how such a powerful storm forms as well as how it is affected many areas of the United States. Color photos complement information in the text.

The Indian Ocean Tsunami of 2004 was one of the worst disasters of recent years. Readers will learn how the tsunami formed and how the areas and people affected have attempted to recover from its destructive forces.

The Pakistan Earthquake of 2005 left thousands of people homeless or dead. Readers learn how the earthquake happened and how nations around the world responded to aid the victims and rebuild the affected areas.