The
transfer
of
thermal
energy
by
the
movement
of
particles
from
one
part
of
a
material
to
another
is
called
____________________
,
convection
occurs
in
fluids
____________________
and
____________________
.
Convection
occurs
,
in
part
,
because
of
difference
in
____________________
due
to
thermal
____________________
and
thermal
____________________
in
different
parts
of
the
material
Te
movement
of
fluids
up
and
down
in
a
cycle
because
of
convection
is
called
a
convection
____________________
,
these
currents
cause
patterns
in
Earth
____________________
.
