13. Compare what you see in the
picture and what you saw in
the activity.
Is there something in the
picture that looks like what
was formed in the activity?
Do you see anything similar?
14. Based on the activity
and the picture, you
can probably guess
what a fault is by
now.
15. Figure 3. Make a narrow box cover cut into
two pieces
the movement along the “fault” is in the horizontal
direction.That is, the “ground” moves sideways.You can
also demonstrate movement in the vertical direction.The
ground will be observed to move up or down
16. Activity 2.
1. Get the box cover and cut it so that the length of
one piece is twice the other (Figure 3). If you
cannot find a box cover, make one using
cardboard.
2. Place the shorter box cover within the longer one
(Figure 4, left photo). Put sand in the nested box
covers. Shake the box side to side so the surface of the
sand will become level (Figure 4, right photo).
17. 3. Now, slowly pull the sides of the box
covers as shown in Figure 5. Ask the
students to observe carefully.
19. This simulates what happens when the ground
is pulled apart by forces within the Earth. Faults
form, a portion of the land sinks, and a valley is
formed.
20.
21. a fault is formed when the ground is squeezed by
forces from inside the Earth. A portion of the land is
pushed up, and mountains are formed.
22. A fault is a break in
the Earth’s crust, and
along the break,
significant movement
has taken place.
23. Figure 11. Drawing
A shows the ground
before bending. In
Drawing B, the
ground is bending,
storing energy. In
Drawing C, the
bending limit is
reached, and the
ground has
snapped.
