I. Make model  (click here for model)

1. Color the fault model that is included according to the color key provided.
     
2. Paste or glue the fault model onto a piece of construction paper.
     
3. Cut out the fault model and fold each side down to form a box with the drawn features on top. Make sure you fold all parts before you glue or tape.
     
4. Tape or glue the corners together. This box is a three dimensional model of the top layers of the Earth's crust.
     
5. The dashed lines on your model represent a fault. Carefully cut along the dashed lines. You will end up with two pieces. You may wish to have your students tape or glue a piece of construction paper on the side of the two fault blocks along the fault face. This will help with the demonstration.

II. Illustrate fault motion

This exercise has students develop a model of a normal fault. After you make the fault model from directions above, illustrate a "normal fault."

1. Instructions to students: Locate points A and B on your model. Move point B so that it is next to Point A. Observe your model from the side (its cross-section). You have just observed a "normal fault." Are there other ways faults can cause movement?
   

   This fault model was develop by Tao Rho Alpha of the U.S. Geological Survey, Menlo Park.