M A S T E R P A G E
2. Measure 4 cm from the left edge on the same line and punch another hole, as illustrated. Punch two more holes
4 cm beneath the top two. Then, measure to find the point at the center of a four holes on this side. Mark that point
and punch one small hole.
3. Follow the same procedure on the opposite end of the box.
C. Putting It Together
1. Tie the 30-cm length of string securely to the center of a craft or ice cream stick. Pull the free end of the string
down through the center hole on the top of the shaking platform. The stick will keep the string from pulling
through the hole. Leave enough string to pull through to the outside of the box.
2. Tie the two longer pieces to the center of a craft or ice cream stick. Pull them down
through the center hole on the long side of the platform, then out through the center
hole on the short sides of the platform. Reinforce the stick with tape if desired. When
the table is fully assembled, you will pull on these strings to shake the platform.
3. While one student holds the platform in place inside the box, parallel to the floor,
another student will thread a rubber band through the right upper hole in the A end of
the box and the right outer hole of the shake platform, then out the lower hole in the
box.
Use a paper clip to hold the rubber band in place. Do the same thing with the opposite holes on End A. Then, turn
the box and repeat with End B. Pull the loose ends of both strings out through the center holes.
A G U
/
F E M A
263
S
E I S M I C
S
L E U T H S
