The Art of The Green Thumb - The Science Barge Date: 11/06/11 Hours: 2-4pm Ages: YE Price: $5 materials fee per child. Address: 99 Dock Street - 914-375-2151 Yonkers, NY 10701 www.groundworkhv.org/programs/environmental-education/science-barge/ Description: Most of the plants on The Science Barge are grown without soil. To understand how this is done, participants, ages 5-10, make their own mini, no-soil plant garden to take home.