PROBLEM: How does the earth "relieve" itself of stress?
(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."
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
You have a slab of clay. "Stress" your clay in the following ways.
DRAW CLAY AFTER EARTHQUAKE
CONCLUSION: What happens when the Earth is under stress?