The
____________________
is
the
organ
of
hearing
.
We
use
our
ear
to
identify
different
____________________
.
A
sound
____________________
comes
in
from
the
outside
.
It
is
collected
by
the
____________________
and
enters
the
ear
____________________
.
After
it
passes
through
the
____________________
ear
the
sound
waves
strike
the
ear
____________________
.
Then
,
the
sound
waves
hit
the
ear
drum
and
make
it
vibrate
.
This
vibration
moves
the
____________________
,
then
the
____________________
and
finally
the
____________________
.
Then
the
stirrup
moves
and
pushes
against
the
____________________
.
In
the
____________________
,
sound
moves
as
a
wave
creating
____________________
.
The
cochlea
contains
fine
____________________
that
are
moved
by
the
sound
waves
.
This
movement
of
the
hairs
causes
electrical
____________________
that
travel
up
the
____________________
____________________
to
the
brain
.
The
brain
makes
sense
of
the
signals
and
tells
us
what
we
can
____________________
.
