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Physical Science for Teachers
NS 1010-Beginning of Class and Plate Tectonics
23
Science
Not Applicable
10/09/2013

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Cards

Term
Scientific Theory
Definition

Synthesis of large body of information that encompasses well tested and verified hypotheses about certain aspects of the natural world. 

Theory means lots of eveidence to support it. 

Term
Scientific Method
Definition

Observation

Question

Hypotesis

Predictions

Experimentation

Conclusion

 

Important agreement in scientific community

Term
Applied Research
Definition
Research that focuses on providing us with food, medicine, and material goods.
Term
Scientific Law
Definition

When a hypothesis is tested over and over and over and hasn't been contradicted.

Law of gravity. Law of motion. 

Term
Basic Research
Definition
Leads to greater understanding of how natural world works. Knoweld for knowledge's sake.
Term
Research
Definition
Any activity aimed at the systematic discovery and interpretation of new knowledge.
Term
Theory of Plate Tectonics
Definition
Theory describing movement of plates. 1960s scientists discovered mantle currents.
Term
Theory of Continental Drift
Definition
Surface of Earth has 8 large plates and several smaller ones covering it. (Convection current in the mantle causes them to move). Theory created by Alfred Wegener. He didn't know why they moved, and felt other scientists should discover that. He was laughed at.
Term
Body Wave
Definition

Travels through Earth's interior.

a. Primary-1st ones-travel in all directions.

b. secondary-after primary, only travel through solids.  

Term
Convergent Boundary
Definition
Two plates come together. ------><-------
Term
Subduction Boundary
Definition

One plate slides under the other. Creates mountains like the Andes and Himalyas. 

<-------

~~~~~~

               V

Term
Divergent Boundary
Definition

2 plates moving away from each other. Like Mid-Atlantic ridge between Europe and N. America. 

<--------   ---------->

Term
Transform Fault Boundary
Definition

Two plates moving side by side. like San Andreas fault. These produce the most violent earthquakes.  

Term
Layers of the Earth
Definition

Crust, 

Mantle

Outer Core

Inner Core

Term
Seismic Waves
Definition
waves that travel thru the Earth's interior caused by an earthquake.
Term
Surface Wave
Definition

Travel on surface 

a-Love-fastest surface wave, side to side

b. rayleigh-roll side to side and twist

Term
Continental Crust
Definition
15-20 miles thick
Term
Oceanic Crust
Definition
1600 degree Fahrenheit. Under ocean. 3-5 mi thick.
Term
Mantle
Definition

Lithosphere-Directly under crust

 

Athenosphere-plastic-y layer-liquid/solid very heavy and thick 5000 degrees F

Term
Outer Core
Definition
Made of nickel and iron and houes Earth's magnetic field. 6700 degrees F. 1400 miles thick
Term
Inner Core
Definition
Nickel and iron, but still a solid. up to 7800 degrees F. Pressure and weight cause it to stay together as a solid. They vibrate in place as a solid.
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