Plate Tectonic - Plate Tectonics (3)
 Lab 

PROBLEM: How does the earth "relieve" itself of stress?

PREDICTION: 

EXERCISE I. 
Glue Ball. 
     (1) Each Glue Ball represents a portion of the Earth.
     (2) Stick Glue Balls together and mix well. 
     (3) Predict what will happen if the "Glue Ball Earth" is "stressed."

EXERCISE II.
Find out how much stress the following items can withstand. Put each one between the palms of your hands. See if you can create enough pressure to break them.

 

DO YOU THINK YOU
CAN BREAK IT?

WHAT HAPPENS
1. Peanut    

 
2. Clay    

 
3. Marbles    

 
4. Styrofoam    

 



EXERCISE III.  
You have a slab of clay. "Stress" your clay in the following ways.

 

DRAW CLAY AFTER EARTHQUAKE
A.  
B.  
C.  

CONCLUSION: What happens when the Earth is under stress?

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