1
.
A
way
of
transferring
energy
from
one
place
to
another
without
matter
being
transferred
is
callled
a
____________________
.
2
.
Glass
or
plastic
,
shaped
in
order
to
focus
light
,
is
called
a
____________________
.
3
.
All
of
the
wavelengths
of
light
that
can
be
seen
are
within
the
____________________
____________________
.