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Student Testimonial
One
At Sylvia Packard Middle School, the math teachers and their
eighth grade students participated in a project called Keep
the Heat. This was a worldwide project. During the course
of the project, the students tried many recycled materials
to see which would create the best insulation. We measured
the insulation on the R-value scale. We measured the temperature
with a probe and a Palm Pilot.
On the very first day, we used a Palm Pilot and a probe to
measure the natural environment's temperature. It was twenty-three
(23) degrees Celsius. Then we took a wooden box that contained
a light bulb and no insulation inside of it. We put the probe
in the box, shut the lid, turned the Palm Pilots on, and then
we turned on the light bulb. Once the temperature inside the
box reached 30 degrees above room temperature, which was approximately
at fifty-three (53) degrees Celsius, we turned off the light
bulb inside. Then we waited for the temperature to go back
down thirty (30) degrees. This took approximately twenty minutes
to do. On a R-value scale, this insulation would be about
a 3 which is very bad.
On day two, we had three separate boxes set up. Group ones
box contained one layer of Styrofoam as insulation. When their
temperature reached thirty degrees above room temperature,
then they turned the light off. It took fifteen to go back
down. Using a R-value scale, the R-value would probably be
a 3. Group twos box had two layers of insulation inside
of it. When they turned their light off, it took about twenty
minutes to back down. On an R-value scale, this would be a
6. Finally, group threes box contained three layers
of insulation inside. When they turned their light off, it
only took twenty-five minutes to go back down to room temperature.
On the R-value scale, this insulation would be a 9.
On the very last day, we used a recycled material for insulation.
The material we used was shredded newspaper. When the temperature
inside the box reached our desired temperature, we turned
the light off. It then took around twenty-eight minutes for
the temperature to go back down. We found that the recycled
material or newspaper was the best insulation. The R-value
of the newspaper would be about 11.
After the project was over, the students had learned that
recycled materials, such as newspaper, worked better than
Styrofoam layers and it worked much better than no insulation
at all. The highest number of the R-value scale is a 12. When
the students had no insulation, the R-value was 3. When they
had one layer of Styrofoam, the R-value was 3 again. When
they added another layer to the box, the R-value was 6. After
that they added another layer of Styrofoam to make a total
of three layers and the R-value of that was 9. In the end,
they used shredded newspaper as insulation and the R-value
on that was 11, which was the best out of all the insulations.
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