* Weighs three pounds.
* Controls every thing you say and do.
* Is faster and more powerful than a super computer.
* Generates enough electricity to power a light bulb.
* Neurons send information to your brain at more than 150 miles per hour.
* When you learn, you change the structure of your brain.
* Exercise helps make you smarter.
For more information, please visit: http://kids.nationalgeographic.com/kids/stories/spacescience/brain/