Skip to main content

Ocean Plate Meets Continent

Open to everyone until Thursday, October 1

To keep it, print it while it is open.

The dark ocean plate is denser than the pale continental plate. Where they meet, the ocean plate sinks below and the continent’s edge bends upward.

In the picture

  1. The dark ocean plate: a dense slab packed with small specks
  2. The pale continental plate: a lighter, thicker slab with layered bands
  3. The descending edge: the ocean plate bends and slides beneath the continent
  4. The raised ridge: the continent’s edge buckles upward

Examples

  • A heavy notebook sliding under a lighter notebook can lift its edge.
  • Pushing a thick carpet against a wall can make its edge fold upward.

Carry on in the app

Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.

At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.

Get the app

Free app, optional subscription
App Store Google Play

Geography, Age 12