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Earth's History
EOG Prep
21
Science
8th Grade
04/23/2012

Additional Science Flashcards

 


 

Cards

Term
Divergent Plate Movement
Definition
When two tectonic plates move apart
Term
Convergent Plate Movement
Definition
When two plates move towards eachother
Term
Transform Plate Movement
Definition
When two plate scrape past eachother.
Term
What forms a Fault line?
Definition
Transform Plate Movement.
Term
What forms a Mid-Ocean Ridge?
Definition
Divergent Plate Movement
Term
What forms a rift?
Definition
Divergent Plate Movement
Term
What creates a Trench?
Definition
Convergent Plate Movement (Subduction)
Term
Pangea
Definition
Super continent formed millions of years ago when all continents were together.
Term
Name the Layers of Earth from the most inner to outer.
Definition
Inner Core, Outer Core, Mantle, Crust
Term
Mass Extinctions are caused by:
Definition
Catastrophic Events
Term
What is Index Fossil?
Definition
Comparing age of fossils based on their superposition levels
Term
Fossils will usually contain:
Definition
Bones and Teeth of the organism.
Term
Ice cores are
Definition
A cylinder piece of ice that contains organisms, gases, and other things from that certain year.
Term
What are the sections of the Geologic time scales from longest to shortest?
Definition
Eon, Era, Period, Epoch
Term
What marks the end of an era?
Definition
A mass extinction.
Term
What is Precambrian time?
Definition
Time period of 4 billion years long with no life on Earth
Term
Charles Darwin is
Definition
The father of the Theory of Natural Selection
Term
Natural Selection is
Definition
a change in the DNA of an organism that benefits it. Happens at random
Term
Adaptation is
Definition
A trait that helps an organism survive in it's enviroment.
Term
The factors of Natural Selection are
Definition
Must involve variation, must be passed on, and must give an adaptation.
Term
Fitness is
Definition
How succesful an organism is at reproducing.
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