A compass needle is a small magnet balanced on a pin so that it is free to point in any direction.
(A compass needle; is; a small magnet balanced on a pin) (a small magnet; balanced; on a pin) (it; is; free to point in any direction) (it; to point; in any direction)
A compass needle a small magnet it it
is balanced is to point
a small magnet balanced on a pin
on a pin
free to point in any direction
in any direction