Watch as the crew of space shuttle mission STS-118 explains plant growth chambers they are delivering to the International Space Station. To help NASA, the astronauts invite students to participate in the plant growth chamber experiment. In the U.S. lab of the International Space Station, Expedition 15 Flight Engineer Clayton Anderson prepares the plant growth chambers for a 20-day plant growth experiment. Viewers observe how the tiny plants grew before the experiments were returned to Earth on shuttle mission STS-120. Visit the following website to watch the video. http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Growing_the_Future_Plants_in_Space.html