I find myself in New Hampshire right now because we received a phone call that had the words "dad, brain, surgery and cancer" all in the same sentence. Unfortunately air travel tickets were at a premium so we elected to drive. The drive while long was uneventful but it brought to mind a question poised by a student on my last field class.
How are continents made? Every earthscience teacher in the K12 world teaches about continents. They all explain to their students about how continents "float" while oceanic crust "sinks" They all explain how new oceanic crust is "created" at spreading centers, but none of the group I had ever discussed how continents are made.
A quick survey of my class found that no one really discussed this chapter of geology. I was wondering. Do university classes skip this? Do university students just forget this part? Or has this knowledge level eroded away?