Justin Spratt
Scientific report
introduction: it is important to maximise coolness and minimise energy consumption because
we live in a hotter climate and because off this we use air cons and fans a lot, and by cutting
down on energy consumption we could save money. Some of my home designs will be lighter
coloured roof and walls windows that can be opened, ventilation throughout the house,
insulation, stilts so that it can cool under the house. The strengths of this house are that it will
hopefully keep the house cool but the weaknesses will be trying to construct it.
Aim: to find out if different colours on the roof and walls makes a difference in heat.
Hypothesis: it is predicted that white will be the coolest then blue and after blue, red.
Materials:
* 3 pieces of A4 card red, white, blue
* 3 ice cubes
*3 small cups
Justin Spratt
Method:
Step 1 draw cube net on each card
Step 2 cut out the card net of each card
Step 3 fold the cube net until it makes a cube
Step 4 glue the cubes together only leaving 1 side open
Step 5 cut the cups so they become small then place them in the cube
Step 6 place the ice cubes inside the cube then place the cube outside in the sun
Result:
Red
White
blue
5 mins
10mins
15mins
20mins
25mins
half melted
No water
¼ melted
¾ melted
¼ melted
Half melted
¾ melted
¼ melted
Half melted
Almost melted
¾ melted
¾ melted
melted
Melted
Almost melted
Discussion:
the models that we built were good because they were able to keep the ice cool for 25 minutes
out in the sun before most of them were fully melted, it turns out that blue was the only one
that wasn’t melted. The reason that they lasted so long is because of reflection the colours that
we used which were red, blue and white and there were little cracks so air could go inside the
box.
Conclusion:
we were wrong about the box that would last the longest we said white and it melted before
blue, but red was the first one to melt. The idea that was used to keep our ice cubes cool was
the colour but with a few other things changed it could become a lot cooler. Some of the things
that we will do for our house will be to paint it light colours such as light blue and white.
Evaluation:
the strengths of m the models that the colours did work and were effective but a little longer in
the sun the then ice cubes would melt, so colours alone won’t be able to keep the house cool.
We had trouble trying to see how the ice was going to we had to turn it just to try and see the
ice. Add ventilation as well as insulation to the boxes and i think it would make it even cooler.
Justin Spratt