The Roger Williams Park Zoo in Providence, Rhode Island, is a fun and educational outing. I took my sister and her 8-year-old son there, and we all had a wonderful time. We saw lots of different species, of course, but our favorites were the polar bears and the penguins. We especially got a kick out of watching the polar bears swimming underwater. The zoo also features cheetahs and elephants among many other interesting animals and exhibits. The grounds are pretty, and it's a nice day out in the fresh air. Check your libary for discount passes.