Vocabulary 1
Earth's layer of hard, solid rock
What is the outer layer?
A sudden shaking of Earth's surface
What is an earthquake?
Name of the supercontinent
What is Pangea?
Where 2 plates meet
Humans have dug this far
What is not far? What is have not reached the mantle? What is into the outer layer?
One of the very large sections of hard, solid rock that make up Earth' outer layer
What is a plate?
Layer of soft, solid rock underneath Earth's plates
What is the mantle?
Name of part of the supercontinent that includes South America, Africa, India, Australia, and Antarctica
What is Gondwanaland?
One pate moves underneath the other plate and sinks into the mantle
What is a convergent plate boundary?
Evidence of matching animal fossils from two separate continents _____________________ and _____________________
What are South America and Africa?
Something we observe to be similar over and over again
What is a pattern?
Any of the many processes in which gas, lava, and ash are pushed out on the surface of Earth
What is volcanic activity?
Term for an ancient organism that has been preserved in rock
What is a fossil?
Rock rises from the mantle and hardens, adding new solid rock to the edges of both plates
What is a divergent plate boundary?
Evidence of tropical plants were found on this continent
What is Antarctica?
A long, deep indentation in the ocean floor formed when 2 plates meet
What is a trench?
An underwater mountain range formed when 2 plates move apart
What is a mid-ocean ridge?
Wegener's hypothesis was rejected because he could not prove this
What is: How do the plates move?
When 2 plates slide past each other
What is a transform boundary?
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent and sea-floor spreading?
How often or how fast something happens
What is rate?
When one plate is goes under and is burned up in the mantle at a convergent boundary
What is subduction?
The remains of the tropical plant in a cold area was proof of this type of evidence
What is climate?
Boundary that is closest to us
What is a transform boundary?
This is the mechanism (what causes) the plates to move
What are convection currents?