NOVA scienceNOW: Sleep
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Student Handout
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Knot Tying with a Twist
How to Tie a Square Knot
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Take the ends of the rope and make an "X" with the left end of
the rope placed over the right.
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Cross the "new" right end around the rope to make an overhand
knot.
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Take the right and left ends and put the right end over the
left.
Tie a second overhand knot.
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Pull the ends tightly so that they make a neat, square knot.
How to Tie a Bowline Knot
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Hold the two ends of your rope together, then lay your rope flat
on a table.
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Take the left half of the rope and make a small loop about half
way down. (This loop is sometimes called the hole.)
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Take the right end of the rope (the tag end), and bring it up
through the hole.
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Pass the tag end under and around the left strand of the rope.
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Then bring the tag end back down through the hole and pull the
knot tight.
How to Tie a Sheepshank Knot
Lay the rope on a table and make an "S" with rope.
Make a loop at the bottom left.
Pass the top part of the S through the bottom loop.
Make a small loop at the top right.
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Pass the bottom part of the S loop through the top loop and
tighten so that the looped ends on the left and right are about
the same size.
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