August 14-18 COSI presents Farm Days: Little Seeds, Big Tractors showcasing the big equipment of the farm and the farmers who use them. Come “milk” Daisy, COSI’s fiberglass cow, sit in the cab of a big combine or climb behind the wheel of a tractor. Try a pedal tractor course, make a necklace that grows and collect trading cards with fun farm facts. Plus enjoy all other COSI exhibits. The event is discounted for Ohio Farm Bureau members. Please download coupon at the left for discount.