Science Chapter 7 Flashcards
What was PANGAEA?
PANGAEA was the super continent that once was. When all of our continents were connected.
Who was the person who founded PANGAEA?
Albert Wegner
What were the fossil clues?
Fossil clues were when scientists found fossils of different instinct animals on different countries across the world. But these creatures couldn’t have swam or flew across the ocean.
Who discovered PANGAEA
Alferd Wegner
What was the main theory that Alfred Wegner had?
Continental Drift Theory
How many years ago was PANGAEA last formed?
200mil
What is PANGAEA in greek?
“The whole land”
What was is called when PANGAEA was breaking apart?
Rifting
How did Alfred Wegner figure out that our continents fit like puzzle pieces?
Matching Coast lines
What were the fossil clues?
The fossil clues were that people found fossils of the same creature across the world. These creatures did not have the ability to swim or fly. So how did they get there? If all of our continents were together, then those creatures could have walked.
What were the rock clues?
The rock clues were we figured out that the same mountain range was on two different mountains across the world from each other. They found the same type of minerals in them.
What were the climate clues?
When glacials were close to the equator. Also known as Glacial Sparing
Can our continents be moving right now?
Yes. Our continents moved once before they can move again.
What is the cold, rigid, outermost layer called?
Lithosphere.
What layer is below the Lithosphere?
Asthenosphere
