Kids (5 - 10) and teens (11 - 14) learn about a variety of sustainable gardening practices like aquaponics, vermicomposting, algae and mushrooms at this series of classes run by Spark-Y: Youth Action Labs at Bachman's on Lyndale. Four Saturdays: Sept. 14, Sept 21, Sept 28 & Oct. 5. Learn more and register for one or all at bachmans.com under Seminars and Events. Cost $15, with all proceeds going to benefit Spark-Y: Youth Action Labs, a non-profit organization providing hands-on sustainability education to youth.