Plate Tectonics II

What is a fossil?

• A system of ideas intended to explain something

• Any trace of an ancient organism that has been preserved in a rock

• Continents joined together; supercontinent

• Plates slip past each other

What does Pangea refer to?

• Continents joined together; supercontinent

• Plates move apart or diverge from each other

• Long chains of mountains that rise up from the ocean floor

• The process by which the ocean floor sinks beneath a deep-ocean trench

What is a theory?

• Plates slip past each other

• A system of ideas intended to explain something

• When plates come together

• The idea that continents slowly moved over Earth’s surface

What is a mid-ocean ridge?

• When mid-ocean ridges continually add new material to the ocean floor

• Plates slip past each other

• Earth’s lithosphere broken into pieces separated by cracks

• The process by which the ocean floor sinks beneath a deep-ocean trench

What is a rift valley?

• Plates slip past each other

• Where piece’s crust diverge on land, a deep valley forms

• Long chains of mountains that rise up from the ocean floor

• When plates come together

What is a plate?

• Earth’s lithosphere broken into pieces separated by cracks

• Plates move apart or diverge from each other

• The idea that continents slowly moved over Earth’s surface

• When plates come together

What is subduction?

• The process by which the ocean floor sinks beneath a deep-ocean trench

• Plates slip past each other

• When plates come together

• Long chains of mountains that rise up from the ocean floor

What is continental drift?

• The idea that continents slowly moved over Earth’s surface

• Plates move apart or diverge from each other

• When plates come together

• Plates slip past each other

What is a fault?

• Breaks in Earth’s crust where rocks have slipped past each other

• Plates move apart or diverge from each other

• When plates come together

• Long chains of mountains that rise up from the ocean floor

What is a transform boundary?

• Plates slip past each other

• When plates come together

• Plates move apart or diverge from each other

• The process by which the ocean floor sinks beneath a deep-ocean trench