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Metric System

Understand metric units of length, mass and volume.

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Running the Race

Credit: Georgia National Guard
Source: http://www.flickr.com/photos/ganatlguard/8094527884/
License: CC BY-NC 3.0

In the past few years, Americans have become obsessed with 5K races. They run these races to raise money for charity, to improve their fitness, and to bond with their communities. But what is a 5K, and why is it such a popular race?

5,000 Meters of Fun

“5K” stands for five kilometers, the distance of a 5K race. This is equivalent to 5,000 meters, or a little over 3 miles. 5K races have grown to be popular because they’re a good distance for both beginners and experienced runners. A beginner can train to run a 5K race over a fairly short period of time. Expert runners can hone their skills and strategy in 5K races as they train for longer races, such as marathons. 5K races for charity are often advertised as “run/walk races.” This means that while serious runners may attempt to finish first, less experienced runners can simply walk the 5K to support the cause. A 5K's participants can include athletes, the elderly, and even parents with babies in strollers. Many community festivals feature 5K runs.

Credit: Candice Villarreal/U.S. Navy
Source: http://www.flickr.com/photos/usnavy/5600584959/
License: CC BY-NC 3.0

You can train for a 5K even if you’ve never seriously pursued running before. Over several weeks, you can build up your endurance and speed. After your first race, you may find that you enjoy the challenge and competition of 5K runs.

See for yourself: http://www.today.com/video/today/49290722

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  1. [1]^ Credit: Georgia National Guard; Source: http://www.flickr.com/photos/ganatlguard/8094527884/; License: CC BY-NC 3.0
  2. [2]^ Credit: Candice Villarreal/U.S. Navy; Source: http://www.flickr.com/photos/usnavy/5600584959/; License: CC BY-NC 3.0

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