Method

1. Gather up all the needed equipment.
2. Cover the ice cream container with one type of material, including the top and bottom.
3. Stretch a rubber band around it to keep it in place.
4. Repeat step 2 with the other clothing materials, and set one up with no material. This will be the control.
5. Soak one of each clothing material in water at 15 degrees Celsius.
6. Repeat step 2 with each of these wet materials.
7. Heat up the water using a kettle to 76 degrees Celsius.
8. Using the measuring cup, pour 600 mL of water into each ice cream container.
9. Fit each lid onto the ice cream container securely.
10. Let experiment sit for 1 hour at around 18.5 degrees Celsius.
11. Check the temperature of the water in each ice cream container using the thermometer every 20 minutes for 1 hour.
12. Repeat each test 3 times.
13. Record the temperatures onto a notepad.
14. Calculate the average water temperature for each clothing material.
15. Prepare tables and graphs.

Equipment

Here is the equipment I will need for this experiment:

• __x__cm of polyester
• __x__cm of cotton
• __x__cm of wool
• 3 ice-cream containers
• Digital stem thermometer
• 3 rubber bands
• Water
• Kettle
• Measuring Cup
• Pen and notepad

Test Variables

These are the variables I am going to change in order to find out the answer to my aim:

• The clothing material
• Whether the material is wet or dry
• Control = no material applied

Constant Variables

These variables are the variables that I will need to keep the same:

• The size of the container
• The size of the material
• The starting water temperature
• The temperature that the material is soaked in (if I am going to test it as a wet material)
• The time before I check the water temperature
• The room temperature

Measured variable

The variable that I will be looking for to find the answer to my aim will be the temperature of the water. By comparing this, I will be able to find out which clothing material will keep you the warmest.

Aim & Hypothesis

Here is my aim and hypothesis for my new experiment:

Aim:
Which clothing material will keep you the warmest when you are wet or dry?
Hypothesis:
I think that the dry wool will keep you the warmest because wool comes from animals, eg. sheep. Since animals need fur to keep themselves warm during winter, the wool must be an effective way of keeping themselves warm.

Experiment Ideas

For my clothing materials experiment, I am planning to test the following materials:

• Polyester
• Cotton
• Wool

I will also be having a control experiment (where no material will be applied to the container).

Also, I am thinking of testing the materials when they are wet.

Important Notice!

Unfortunately, I have discovered that I can not test products (compare brands, etc.). So, I have decided to change from testing house insulation materials to testing clothing materials. I will be using the same setting out of the experiment, except I will be testing clothing materials instead of house insulation materials.

Equipment

Here are the equipement that I will need:

• Ice cream containers


• Digital Stem Thermometer


• Sellotape


• Pink Batts insulation


• Thermakraft Insulation Foil


• Polystyrene


• Boiling water


• Measuring cup


• Notepad and pen

Trip to Dick Smith

Sorry I couldn't post yesterday, but I was busy doing the 20-hour "techno famine".

Yesterday, I went to Dick Smith to have a look over there. I found a good thermometer which ranges from -50°C ~ +150°C. It's accuracy is ±1°C.

Also, they gave me some spare polystyrene that I could use.