I would think the World Showcase would be good if you can work with other countries (I would check; my districts curriculum doesn't talk about anything outside the US until middle school)...you could compare the aspects of each country in Epcot with what it actually represents....
climate is usually associated with social studies. you could talk about why Walt Disney chose Florida and not a snowy/super hot/tornado prone state.
i don't know about my ideas but hopefully I at least got your brains thinking of the perfect idea!