Activity One / Create
a Compass
Instructions for Students |
Create a Box Compass
Materials:
• Square box with sides no more
than 2" high (bottom of a half-gallon milk
carton will do)
Cardboard circle small
enough to lay flat in bottom of box
1 1/2" nail with
head
1 large paper clip, straightened
Compass
rose (click to download a pdf file)
Magnet (one from the
front of the refrigerator will do)
Glue or tape
Directions:
Pierce the center
of the box bottom with the 1 1/2" nail from
the bottom up into the box.
Take the straightened
paper clip and compare to the diameter of your
compass rose. If longer, trim it.
Rub the paper clip against
a magnet for several minutes.
Glue or tape wire to
the cardboard circle, slightly off center.
On same side, mark center
of cardboard circle and pierce halfway through.
place cardboard circle on point of nail in box.
Let circle settle. It will turn gently until one
end of the needle points to north.
• Create a compass rose either
by printing the example or drawing your own. it
should be the size of your cardboard circle.
Glue the compass rose
to the cardbosrd circle with the fleur de
lis placed where the needle end points to
north.
Create a Water Compass
Materials:
Small paper clip, straightened
Small piece of styrofoam
(packing peanut works great)
Bowl of water
Magnet (one from the
front of the refrigerator will do)
Permanent marker
Directions
Rub the paper
clip with the magnet for several minutes.
Pierce the paper clip
through the styrofoam.
Gently place on the surface
of water. Allow the needle enough time to align
along the magnetic fields of the earth. It will
then point north. Test this by gently blowing
on the needle to push it out of alignment. The
same end of the needle should always return to
the same direction. mark the north end of the
needle with permanent marker.
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