The
interior
of
the
Earth
is
hot
due
to
the
fact
that
the
core
is
____________________
and
there
is
____________________
.
The
crust
acts
as
an
____________________
.
This
means
that
it
helps
block
the
____________________
from
the
core
from
reaching
the
surface
.
The
crust
is
not
a
conductor
or
transmit
heat
from
the
core
.
The
surface
of
the
Earth
is
warm
due
to
____________________
NOT
from
the
radiocative
____________________
.
The
core
also
produces
a
____________________
.
This
helps
protect
Earth
from
much
of
the
radiation
from
the
sun
that
is
harmful
.
The
mantle
contains
____________________
.
These
are
circular
items
that
work
by
transferring
heat
within
Earth's
____________________
.
This
occurs
because
hot
,
____________________
rises
.
As
this
plastic
____________________
rock
rises
towards
the
surface
it
begins
to
____________________
as
it
moves
farther
from
the
nuclear
core
.
As
it
cools
it
becomes
____________________
until
finally
it
____________________
toward
the
core
again
to
begin
the
process
again
.
The
core
is
the
____________________
for
convection
currents
.
