6, 7 or 2 continents? Depends on who you ask.

If you went to school in the US or the UK, you probably learned that there are seven continents. But that number really depends on where you grew up. Elsewhere, you probably learned that there are only six continents. To get to the bottom of this, host Carolyn Beeler spoke to Jordan Phethean, an Earth scientist at the University of Derby in the UK.