Hydroponics is a method of growing produce that grows only using water but uses soil to start.  Seedlings are grown in soil to start but then transplanted into nutrient-rich water, where they are allowed to grow.  Challenger's Ecosquad has 7 large hydroponics tables.  We use the system to grow different varieties of lettuce, and bok choy.  Our hydroponics system grows most of our leafy greens.  Leafy greens are sold to the community through the district's Youth Garden Stand program.