Science Chapter 7 vocab

Occurs and the magnetic field reverses direction

Process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge

Forms where two plates separate

Suggested that continents are in constant motion on the surface on earth

Forms where two plates collide

All the continents were part of supercontinent

The mountain ranges in the middle of the oceans

A state in which magnetized objects would reverse direction and orient themselves to point South

State that Earth’s surface is made of rigid slabs of rock, or plates, that move with respect to each other.

A state in themselves to point north

It pulls on the rest of the plate with a force

The cold and rigid outermost rock layer

The denser plate sinks below the more buoyant plate in process

Forms where two plates slide past each other.

Rising mantle material at mid-ocean ridges creates the potential for plates to move away from the ridge with a force

The circulation of material caused by differences in temperature and density.