- Type of material
- Layers of material
Tuesday, May 20, 2008
Test Variables
Test variables are things you want to change, in order to find the answer to your question. Here are the things that I am going to change:
Constant Variables
Constant variables are things you need to keep the same in order for the experiment to be a fair test. Here are the things that I will need to keep the same:
- Starting water temperature
- Room temperature
- Time before checking temperature
- Size of container
Measured variable
The measured variable is the things you are looking for that will help you answer your question.
To answer my question, I will need to look at the temperatures of each container of water.
To answer my question, I will need to look at the temperatures of each container of water.
Monday, May 19, 2008
Variables
Since the post on May 15th (titled Experiment ideas), I have come to realise that I do not need to test each material with cold water as well as hot water. This is because the insulation is doing the same thing in each of the experiments - stopping the heat flow. So, it doesn't matter whether it is stopping the heat from getting in or getting out, it will be stopping the same amount of heat from getting through.
Instead, I am thinking of testing the materials by itself, and with two layers. This is because one material may not work very well on its own, but when there is two layers, it may work extremely well.
Also, I can combine two different layers together, and see whether is produces a better result. For instance, I can wrap the Pink Batts insulation around first, and then wrap the Thermakraft insulation foil. I can then compare that with the other combinations.
Instead, I am thinking of testing the materials by itself, and with two layers. This is because one material may not work very well on its own, but when there is two layers, it may work extremely well.
Also, I can combine two different layers together, and see whether is produces a better result. For instance, I can wrap the Pink Batts insulation around first, and then wrap the Thermakraft insulation foil. I can then compare that with the other combinations.
Sunday, May 18, 2008
Aim & Hypothesis
Aim:
Which insulation material is most effective at stopping the heat flow?
Hypothesis:
I predict the Thermakraft insulation foil will resist the most heat because the foil can reflect up to 95% of radiated heat.
Which insulation material is most effective at stopping the heat flow?
Hypothesis:
I predict the Thermakraft insulation foil will resist the most heat because the foil can reflect up to 95% of radiated heat.
Thermakraft

http://www.thermakraft.co.nz/
Pink Batts

Visit to Place Makers
Today, I went over to Place Makers to have a look at the types of insulation they have over there. The main brand of insulation they had over there was Pink Batts, but they also had polystyrene, etc. Unfortunately, they too, sold their insulation in huge rolls and did not have any spare pieces of material. So, unfortunately, I couldn't get any material from there either.
So, we went over to my grandparents' house. Since it was newly built, there were still extra pieces of insulation. There, I found Pink Batts and some Thermakraft insulation foil.
Also, I am thinking of testing some polystyrene.
So, we went over to my grandparents' house. Since it was newly built, there were still extra pieces of insulation. There, I found Pink Batts and some Thermakraft insulation foil.
Also, I am thinking of testing some polystyrene.
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