Potentials of Hydrogen Power

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Potentials of Hydrogen Power ( potentials-hydrogen-power )

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Energetic
Electrolysis
 Activity
Guide
 Set Up Set
up
takes
approximately
10
minutes
 
 Step
1:

Prepare
the
salt
water
solution
adding
one
heaping
spoonful
of
sodium
 chloride
or
sodium
sulfate
per
cup
of
water.
 
 Step
2:

Prepare
the
materials
in
groups
so
that
each
 group
of
visitors
will
have
access
to
a
battery,
two
 alligator
clips,
two
pieces
of
aluminum
foil,
and
the
 plastic
container
with
salt
water.


 
 Step
3:

Practice
the
demonstration.


 • Create
a
basic
electrolysis
set
up
using
the
lantern
battery,
2
alligator
clips,
 aluminum
foil
electrodes
and
sodium
sulfate
(or
salt)
water
solution.

 Note: Don’t let the electrodes touch; this will short out the battery. 
 • Completely
submerge
the
test
tube
into
the
water
and
slide
the
electrode
 into
the
test
tube.

(It
helps
to
fill
the
test
tube
with
salty
water,
then
 submerge
it
to
prevent
air
from
entering
the
tube.)

Once
the
electrolysis
 has
begun
the
hydrogen
and
oxygen
gas
will
displace
the
water
in
the
test
 tube.
 
 
 
 • After
half
of
the
water
in
the
test
tube
has
been
displaced
by
hydrogen
gas,
 unclip
the
alligator
clips
and
stop
the
electrolysis.
 Program Delivery • Slowly
pull
the
test
tube
with
hydrogen
gas
out
of
 the
water
solution,
being
careful
to
keep
the
test
 tube
pointed
down
so
the
gas
doesn’t
escape.

 Pull
the
test
tube
up
slowly
and
avoid
having
 water
flow
up
the
test
tube.

 • Holding
the
lit
match
under
the
test
tube
slowly
tilt
the
test
tube.

They
 hydrogen
gas
will
encounter
the
flame
and
a
quick
explosion
will
occur.


 [Connect
the
alligator
clips
on
the
demonstration
set
up
and
begin
the
electrolysis.]

 
 [Welcome
visitors.

Explain
that
each
pair
of
participants
should
sit
in
front
of
a
 battery.

Explain
to
parents
that
this
is
a
family
activity,
and
they
should
work
with
 their
children
if
needed.]


 
 Today’s
program
is
all
about
energy.

Where
does
energy
come
from?

[the
sun,
 wind,
water,
coal,
oil,
wood,
etc.

Try
writing
answers
down
and
grouping
them
into
 two
categories,
renewable
and
non‐renewables.]
 
 Sciencenter, Ithaca, NY Page 3 www.sciencenter.org

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