At
low
____________________
,
the
ocean
moves
down
the
beach
.
Then
you
can
find
____________________
.
You
can
find
a
____________________
in
a
rockpool
.
It
gets
food
with
its
big
,
____________________
____________________
.
It
____________________
barnacles
,
starfish
,
and
other
little
animals
.
It
eats
plants
,
too
.
Crabs
eat
____________________
,
and
starfish
eat
____________________
.
This
is
called
a
____________________
____________________
.