Topic 4 plate tectonics-content

A fold in a rock that bends  upward into an arch is an __________

Some of the energy released in an earthquake is in the form  of ________

name the type of volcano

_________near the continents’ coast seemed to line up.

In 1912, __further developed hypothesis that all continents had once been fused together + over time had drifted apart.

Plates consist of one or two types of crusts.  What are the two types of crusts?

If lava is thrown into the air, it hardens and falls to the Earth in different forms such as _____, ____, and _______

Plate tectonics are not always moving.

A convergent boundary is when plates .......

name the type of volcano

A transform boundary is when plates .......

The ___________ around the Pacific Ocean is where many of the        world’s earthquakes occur.

There are three kinds of stress on the Earth: tension, compression and _________

name the type of volcano

This hypothesis is known as the _____________

A fold in rock that bends downward is a ______________

Mid-ocean ridges are long zipper-like chains of undersea mountains.

3 types of faults (choose any of the 3 correct answers)

A molten mixture of rock-forming substances, gases and water from the mantle is called        ___________

____ were found on multiple continents and a fernlike plant from 250 million years ago were found on ____ continents. 

A divergent boundary is when plates .........

 It is believed that a supercontinent known as _____had broken up into the continents we know today.

A ______ is a wave or series of waves produced by an earthquake or        landslide.

name the type of volcano

Plates consist of 4 types of crust.

 The Atlantic Ocean is a mature ocean basin and it is surrounded by subduction zones on many sides.

An ________ is the shaking and trembling that results from plate        movement.

Molten rock that flows up through cracks,hardens into solid strips of new rock both sides of crack- sea-floor spreading