1
.
____________________
is
energy
that
flows
everywhere
around
us
,
and
we
use
it
in
our
everyday
life
.
2
.
Protons
and
neutrons
stick
together
inside
the
____________________
.
3
.
Electrons
have
a
____________________
charge
.
4
.
Protons
have
a
____________________
charge
.
5
.
Objects
that
have
opposite
charges
____________________
each
other
.
6
.
Objects
that
have
similar
electrical
charges
____________________
each
other
.
7
.
An
electrical
____________________
happens
when
there
is
an
exchange
of
electrons
between
elements
.
8
.
____________________
electricity
is
energy
that
does
not
flow
.
9
.
Materials
such
as
aluminium
and
water
are
good
examples
of
____________________
materials
.
10
.
Rubber
and
plastic
are
good
examples
of
____________________
materials
.
11
.
An
electrical
current
can
be
produced
and
transported
in
a
closed
electrical
____________________
.
12
.
Alessandro
Volta
invented
the
first
electrical
battery
in
____________________
.
13
.
____________________
____________________
patented
the
incandescent
light
bulb
in
1879
.
14
.
John
Logie
Baird
invented
the
mechanical
____________________
in
____________________
.
15
.
____________________
____________________
made
the
first
phone
call
on
a
prototype
____________________
phone
.
