OBJECT:

How to construct a block and tackle pulley frame.

MATERIALS:

Safety Goggles, Strips of plastic from gallon bottles, Stapler, Hole punch,

PROCEDURE:

1. Make FOUR single pulley FRAMES.

2. Place one single pulley frame next to the another single pulley, such that half an inch overlaps, so now you have a total of 3 and half inches, from 4 inches.

3. Staple the new combination, indicated by the " X " mark.

4. Obtain a plastic strip 2 inches by 3 and half inches; make a fold so that you end up with a 1 inch by 3 1/2 inches, ( Be sure to use pliers when finishing the fold ) make a line at the 1 and 3/4 inches so you can use that as a guide for making your hole.