Answer:
Upper Egypt was actually geographically south. When looking on a map, Lower Egypt bordered the Mediterranean Sea, whereas Upper Egypt was south of that.
The Ancient Egyptians called it that because that is where the Nile River flowed from. The Nile flows south to north, from modern-day Sudan, South Sudan, Ethiopia, and Uganda. This is why they called it "Upper Egypt."
Please let me know if you have any questions at all!
