Energy
never
____________________
.
It
can
be
transformed
from
one
type
of
____________________
into
another
,
but
it
doesn't
disappear
completely
.
Planes
and
cars
transform
the
____________________
energy
in
fuel
and
petrol
into
____________________
energy
and
thermal
____________________
.
We
transform
____________________
energy
into
heat
and
____________________
when
we
eat
.
A
washing
machine
transforms
____________________
energy
into
____________________
energy
.
Solar
panels
transform
____________________
energy
from
the
Sun
into
electrical
____________________
.
