CCMS: Plate Tectonics

According to Wegener's hypothesis of continental drift......

What force causes the movement of Earth's tectonic plates?

Identify the feature labeled A on the diagram.

Hypothesis of ____ ____ is that all land was once joined as a single land mass then moved apart

Mid-ocean ridges form the _________ mountain ranges on Earth.

Most Geologists think that the movement of Earth's plates is caused by .............

If subduction occurs faster than oceanic crust can be created, an ocean will __________.

Geological theory that states that pieces of Earth's lithosphere are in constant, slow motion

When continental plates pull apart at a divergent boundary on land, a(n) ____ forms.

In sea-floor spreading, molten material rises from the mantle & erupts ..............

What technology did scientists use in the mid-1900's to map the mid-ocean ridge?

Name the process that occurs at the area labeled C.

A place where 2 plates slip past each other, in opposite direction is called .....

What happens to new oceanic crust at a mid-ocean ridge?

Oceanic crust near the mid-ocean ridge is ______ than oceanic crust farther away from the ridge

A collision between 2 pieces of continental crust at a convergent boundary produces a ________

The lithosphere is broken into sections called ________ which float on top of the asthenosphere

Wegener provided evidence from landforms, fossils & climate to support his theory of ________

Subduction occurs where the oceanic crust bends down toward the mantle at a(n) ____

Which is evidence for sea-floor spreading.

Identify the feature labeled C on the diagram.

Old Oceanic crust is more dense than the new oceanic crust because it is .........

What happens as a result of the processes modeled by this diagram?

Which statement best describes the process in the diagram?

One piece of evidence causing Wegener to think all continents moved?

Process of _________ continually ads new crust at the ocean floor along mid-ocean ridges.

At a __________, 2 plates move away from each other.

A supercontinent that once existed millions of years ago was called.....

Any trace of an ancient organism that has been preserved in rock is called a _________

What's happening in the area labeled B on the diagram?