All the packages are unwrapped, the egg nog punch bowl is empty and you’ve still got a houseful of family and friends. Where can you go for some indoor fun that has something for everyone? Winter Wonder Days! Winter Wonder Days, supported by our education sponsor the Ohio Lottery Commission, is back at the Science Center this holiday season from Thursday, December 26 through Sunday, December 29. Trade in some of your kids’ “screen time” for family time and start a new tradition by exploring the hands-on activities, programs and demonstrations at Winter Wonder Days.