My husband and I grew up going to the old COSI and our daughter visits the "new" one (opened in 1999) nearly weekly. The newer location has a much larger footprint which may make it feel smaller. They have many permanent exhibits included with regular admission that offer science experiences to all ages. They also have recently partnered with the American Museum of Natural History to open a world class dinosaur exhibit. I often visit science centers when I travel and I'm always impressed by the quality of COSI. The bulb that makes your hair stand up is alive and well (usually in a show in the 1st floor). Enjoy your visit!
There is nothing there compared to the old building from 30 years ago. It's poorly managed now.
There are a tremendous amount of hands on activities as well as some purely informational exhibits. For young kids, the Kids Space is a giant imagination playground on the top floor, as well. Regardless of age group and areas of interest, there would be more than enough to keep you interested for an entire day.
They have a lot of stuff to look at, movies, exhibits, etc. But are things as hands on as the old Cosi, I would say not. Still quite fun, entertaining, and educational though.
There are a ton of exhibits. My 7 yr old's favorites are energy that shows how electricity is made and used, ocean which all water themed, and the new inovention exhibit that is about thinking and creating new things. Also a nice new dinosaur exhibit.
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