Is it possible to travel Argentina/Uruguay in one week?

I’m planning to fly down to Montevideo on Dec 25, and fly home on Jan 3rd. My question: is it possible to hit Montevideo, Buenos Aires, Iguaza Falls, and the Glacier National Park in just 8 days?

Would you be better to reduce your itinerary, 8 days to know 4 places that depend on airplane? you will pass more time in airports than in the cities that it intends to visit. To visit the Iguaçu Waterfall you will have to go to Brazil. And you will need visa to enter in Brazil.