That's a Fact

Gunnar and I are in the school room and I'm looking at the world map on the wall.

"What're ya doin', mom?"

I point out Perth, Australia, where I have lived. He comes closer to inspect the map. Gunnar loves maps. He 'gets' how maps work, (directions, land forms, etc.) but the distances are obviously unclear to a 6 year old.

"Oh!" He points to Perth and moves his finger slowly south.

"So, you could walk a couple miles and get to the sea. And then if you sail for, oh... about 10 months," his finger continues south to Antarctica, "you could get to the Antarctic. And then you freeze."

Done.