Show:
Continental Drift
Plate Tectonics
Plate Boundaries
Pangaea
Other
100
Plates moving apart
What is continental drift?
100
Tectonic Plates are huge thick pieces of rocks thousands of kilometers a across but often little more than a dozen kilometers thick.
What are plate tectonics?
100
It is where two tectonic plates interact.
What are plate boundaries?
100
A Super continent
What is Pangaea?
100
Two plates colliding and resulting in cracks
What are faults?
200
2cm per year. Speed of your fingernails growing
How fast does the continental drift move?
200
20
How many plates are there?
200
Divergent boundaries
What is it called when two plates are moving away from each other?
200
225 million years ago.
When was Pangaea a thing?
200
Circular movement in a gas or liquid created by uneven heating
What are convection currents?
300
Alfred Wegener
Who proposed this theory?
300
Earthquake
What does a sudden movement of a tectonic plate create?
300
Convergent boundaries
What is it called when two plates push against each other?
300
Greenland plate
What is the smallest plate in Pangaea?
300
Liquid rock: Mantle
What do the plates float on?
400
1915
When was this theory proposed?
400
Mountains form
What happens when plates collide?
400
Transform boundaries
What is it called when two plates slides against each other?
400
Eurasia plate
What is the largest plate in Pangaea?
400
Convection Currents
What moves the plates?
500
1. Jigsaw puzzle fit between Africa and South. 2. Fossils of plants and animals on both sides. 3. Mountains similar in age and structures on both sides of the Atlantic. 4. Ice sheets covered Africa, India, Australia, and South America 250 million.
What are the 4 proofs of continental drift?
500
Geological Processes
What does the “Plate Tectonic“ theory explain?
500
Divergent boundaries, Covergent boundaries, and Transform boundaries
What are the 3 types of boundaries?
500
Greenland, North America, Eurasia, South America, and Africa
What are the 5 plates in Pangaea?
500
Two plates slowly crunching together and causing one plate to go under the other
Define Subduction