Coral Reef in Epcot has a fish tank which is an entire wall and has all kinds of fish, sharks, turtles, etc.
Ohana's dinner at Poly. Good food and fun activities for the kids such as a coconut race around the room.
SciFi at Hollywood Studios shows clips of older movies ~ my 3 year old girls were scared, but an active 7 year old might think it's cool. You sit in little cars, themed like an old drive-in. Only problem is our food was not very good, but some people say their food has been awesome there so it may just have been an unlucky day for us....
Espn Club on the boardwalk if the child likes sports.
Japan in Epcot ~ a chef makes your food right at your table.