The Theory of Plate Tectonics

The San Andreas Fault is an example of what type of boundary?

Most divergent boundaries occur here, where new crust is added during sea-floor spreading.

Plates move apart from each other, at what type of boundary?

This forms when plates diverge on land.

Earth's plates meet at....

What feature forms at convergent boundaries?

What happens when two plates collide?

Earth's plates are always moving.

Breaks in the Earth's crust where rocks have slipped past each other are called...

Plates come together at what type of boundary?

Theory that Earth's plates are in constant motion, driven by convection currents in the mantle.

When two continental plates collide, huge mountain ranges can form.

Earthquakes often occur when plates move away from each other.

These type of currents in the Earth's mantle drive plate movement.

The motion of the Earth's plates are fast and constant.

Continental Crust is denser than Oceanic Crust.

What type of boundary is represented in the picture?

Plates slip past each other at what type of boundary?

During subduction, gravity pulls less denser plates down into the Earth' mantle.

In 30 million years from now, it might take an hour longer to fly from New York to London. Why?