Completar Frases
Put each word in its correct space in the passage.
1
rock
igneous
existing
sandstone
molten
limestone
pressure
rocks
basalt
marble
lava
sediments
slate
sedimentary
three
Sedimentary
metamorphic
heat
Metamorphic
heat
pressure
sedimentary
cycle
ONE
magma
sand
metamorphic
granite
TWO
Rocks
are
of
main
types
:
,
,
and
.
Igneous
rocks
are
formed
when
hot
or
cools
down
and
hardens
.
An
example
of
this
type
is
(
or
)
.
rocks
are
formed
when
small
pieces
of
,
,
and
shells
get
pressed
together
over
time
.
An
example
of
this
type
is
(
or
)
.
rocks
are
formed
when
rocks
change
their
form
due
to
extreme
and
.
An
example
of
this
type
is
(
or
)
.
The
process
by
which
one
type
of
rock
changes
into
another
over
time
is
called
the
.
For
example
,
igneous
rocks
can
break
down
into
and
form
rocks
,
and
these
can
later
change
under
and
into
rocks
.
2
changes
pull
stop
motion
direction
size
push
force
size
shape
direction
shape
moving
motion
A
is
a
or
a
applied
on
an
object
.
Forces
can
bring
about
different
.
A
force
can
make
a
body
start
,
moving
,
or
change
its
.
One
effect
of
force
is
a
change
in
the
of
an
object
.
For
example
,
when
we
stretch
a
rubber
band
,
it
becomes
longer
.
Another
effect
is
a
change
in
the
of
an
object
.
For
example
,
pressing
a
sponge
makes
it
smaller
(
or
compressed
)
.
A
force
can
also
change
the
of
of
an
object
,
such
as
when
we
hit
a
moving
ball
with
a
bat
.
Thus
,
force
can
change
the
,
,
and
of
objects
.
3
gases
alveoli
nose
dioxide
bronchioles
bronchi
respiratory
dioxide
diaphragm
lungs
respiration
blood
carbon
carbon
oxygen
The
system
helps
us
to
take
in
and
remove
from
our
body
.
The
main
organs
of
this
system
are
the
,
where
the
exchange
of
takes
place
.
Air
enters
our
body
through
the
and
passes
into
the
windpipe
.
Inside
the
lungs
,
the
windpipe
divides
into
two
tubes
called
.
These
further
branch
into
smaller
tubes
called
.
At
the
end
of
these
tiny
tubes
are
tiny
air
sacs
called
,
where
oxygen
enters
the
and
is
removed
.
The
is
a
dome
-
shaped
muscle
below
the
lungs
that
helps
in
breathing
.
It
moves
down
when
we
breathe
in
and
moves
up
when
we
breathe
out
.
This
whole
process
of
taking
in
oxygen
and
giving
out
carbon
dioxide
is
called
.
4
sperm
reproductive
hips
eggs
voice
height
adults
ovaries
baby
vagina
fallopian
blood
change
widening
develop
changes
fertilization
hair
emotional
deeper
fertilization
facial
uterus
breasts
hair
testes
increase
offspring
growth
production
penis
menstruation
body
sperms
The
system
allows
humans
to
produce
.
The
main
organs
in
males
are
the
,
which
produce
tiny
male
cells
called
.
The
carries
these
cells
out
of
the
body
.
The
function
of
the
male
reproductive
system
is
to
produce
and
deliver
sperms
for
.
The
main
organs
in
females
are
the
,
which
produce
female
cells
called
.
The
eggs
travel
through
the
tubes
,
where
fertilization
may
take
place
if
a
sperm
meets
the
egg
.
The
is
the
organ
where
a
baby
can
grow
and
develop
.
The
lower
,
narrow
part
of
the
uterus
opens
into
the
,
the
passage
through
which
the
baby
is
born
.
The
function
of
the
female
reproductive
system
is
to
produce
eggs
and
provide
a
place
for
the
to
.
The
process
in
which
a
sperm
cell
joins
with
an
egg
cell
is
called
.
During
puberty
,
children
?
s
bodies
begin
to
into
.
In
boys
,
changes
include
growth
of
,
a
,
and
of
.
In
girls
,
changes
include
development
of
,
of
,
and
the
start
of
(
monthly
shedding
of
and
tissue
)
.
Changes
that
happen
in
both
boys
and
girls
include
of
,
in
,
and
.
5
energy
bent
Opaque
bends
allow
shiny
water
not
image
Transparent
air
medium
mirror
Light
reflection
partially
refraction
Translucent
completely
glass
do
is
a
form
of
that
helps
us
to
see
objects
.
When
light
falls
on
a
surface
and
bounces
back
,
the
process
is
called
.
For
example
,
a
shows
us
an
because
of
this
property
.
When
light
passes
from
one
(
like
)
to
another
(
like
or
)
and
,
the
process
is
called
.
This
is
why
a
pencil
in
a
glass
of
water
looks
broken
or
.
Objects
can
be
classified
based
on
how
they
allow
light
to
pass
through
:
materials
allow
light
to
pass
through
.
Example
:
clean
glass
,
clear
water
.
materials
allow
light
to
pass
through
.
Example
:
butter
paper
,
frosted
glass
.
materials
light
to
pass
through
at
all
.
Example
:
wood
,
cardboard
.
Thus
,
light
can
be
reflected
,
refracted
,
or
blocked
by
different
materials
.
|
Repasamos la gramática de la unidad.