Experiment 2
Materials
three
lemons
three
limes
two
plums
two
kiwis
toothpicks
one red
coloured pencil
one
purple coloured pencil
What to
do:
1. Label fruit:
1 carbon, 3 chlorine, 1 fluorine, and 5
oxygen. It
doesn’t matter
what fruit is what, you get to eat it, in the end.
2. Take 4 oxygen and put a toothpick through two
oxygen. do the same to
the
other two. you now have two oxygen molecules.
3. Take the red pencil and point it at one of
the two molecules.
the red
pencil
is high energy radiation. The molecule that was
struck should be
broken
in half. So you have two oxygen
atoms. One of
these atoms is
attached
to the other molecule to make an ozone molecule.
4. Take the purple pencil (this represents Ultraviolet
radiation) and point
it at
the ozone molecule model. This is radiation,
when absorbed, it will
cause an
oxygen atom to break away(remove one atom). The free atom then can
wform an oxygen molecule
with another atom.
5. Build an CFC molecule by connecting 3 chlorine,
1flourine and 1 carbon.
Use the “ultraviolet
radiation pencil” to break the bond. The free chorine
will now
break a ozone molecule, changing it into chlorine monoxide. If a
free
oxygen atom hits a chlorine monoxide, the
chlorine will break away and
a oxygen
molecule will be formed. then the chlorine
atom can hit another
ozone
molecule continuing to destroy the Ozone
Layer.
w
We had
lots of fun with this experiment. We were able to eat the fruit after.