add fill cut observe put
Fist
,
the
test
tube
with
water
.
Second
a
few
drops
of
the
food
coloring
.
Third
off
the
bottom
of
the
stem
so
that
the
experiment
will
work
correctly
.
Fourth
,
the
flower
in
the
water
.
Fifht
,
the
flower
.
After
a
while
,
you
will
see
the
flower
petals
begin
to
change
color
.