Round Circular Ice cubes: 7.23p.m.
Round Square Ice Cubes: 7.53p.m.
Pointy Square Ice Cubes: 7.46pm
Tuesday, June 8, 2010
Results
Date: Tuesday, 8th of June, 2010
Time: 5.50 p.m.
Temperature: clear skies, little wind, 15.3 degrees Celsius
Location: Indoors
Surface Area of the Three following ice cubes (N.B. All measurements are in cm)
Sites used:
http://weather.smh.com.au/local.jsp
http://www.weatherzone.com.au/nsw/sydney/sydney
Time: 5.50 p.m.
Temperature: clear skies, little wind, 15.3 degrees Celsius
Location: Indoors
Surface Area of the Three following ice cubes (N.B. All measurements are in cm)
- Pointy Square: 27.39cm
- Rounded Sides Square: 22.76cm (2dp)
- Circular one: 39.85cm (2dp)
Sites used:
http://weather.smh.com.au/local.jsp
http://www.weatherzone.com.au/nsw/sydney/sydney
Monday, May 31, 2010
Final Method inc. variable etc.
Equipment
1. 3 ice cube trays
2. water
3. timer
4. cooking set with measurements
5. Plastic lids
Method
1. All 3 ice cube trays were cleaned out
2. Each compartment was filled with 7.5mL of water
3. All 3 ice cube trays were put into the freezer at the same time
4. A couple of hours later, all three were taken out at the same time
5. Two ice cubes from each different size was put onto different plastic lids
6. A third ice cube from each different size was also taken out and the surface area of each was measured and noted down.
7. The time was noted
8. Every hour a picture was taken to record results.
9. Step 7 was repeated until the ice cube was almost finished melting.
10. Once the ice cube was almost melted, the total time for the ice cube to melt was recorded
11. Once complete all equipment was washed and put away.
12. All results were documented and recorded
13. A table was drawn up determining if the surface area and shape changed the rate of the ice cube melting.
How the variables were controlled:
1. All ice cube compartments were filled with 7.5mL of water ONLY
2. Two of each ice cube was used to determine the average rate of melting
3. All ice cubes were put into the freezer and taken out at the same time
4. Any water spillages were cleaned up with a cloth
5. Ice cubes were placed on plastic lids so as not to melt on tables
6. All ice cubes were placed in the same room so that the temperature of the room didn't changed the results
1. 3 ice cube trays
2. water
3. timer
4. cooking set with measurements
5. Plastic lids
Method
1. All 3 ice cube trays were cleaned out
2. Each compartment was filled with 7.5mL of water
3. All 3 ice cube trays were put into the freezer at the same time
4. A couple of hours later, all three were taken out at the same time
5. Two ice cubes from each different size was put onto different plastic lids
6. A third ice cube from each different size was also taken out and the surface area of each was measured and noted down.
7. The time was noted
8. Every hour a picture was taken to record results.
9. Step 7 was repeated until the ice cube was almost finished melting.
10. Once the ice cube was almost melted, the total time for the ice cube to melt was recorded
11. Once complete all equipment was washed and put away.
12. All results were documented and recorded
13. A table was drawn up determining if the surface area and shape changed the rate of the ice cube melting.
How the variables were controlled:
1. All ice cube compartments were filled with 7.5mL of water ONLY
2. Two of each ice cube was used to determine the average rate of melting
3. All ice cubes were put into the freezer and taken out at the same time
4. Any water spillages were cleaned up with a cloth
5. Ice cubes were placed on plastic lids so as not to melt on tables
6. All ice cubes were placed in the same room so that the temperature of the room didn't changed the results
Freezing the Water
I have just washed the ice cube trays that I'm going to use so that there is not dirt or foreign material inside the trays.
Also, I have measured and found out that each of the trays easily holds 7.5mL of water each. That is one variable that is being controlled.
The temperature of the water was not able to be found as the thermometer did not work.
The weather today is cloudy and medium rain. I will put the ice cube trays into the freezer after I measure 7.5mL into each compartment and then after a few hours I will take it out.
Also, I have measured and found out that each of the trays easily holds 7.5mL of water each. That is one variable that is being controlled.
The temperature of the water was not able to be found as the thermometer did not work.
The weather today is cloudy and medium rain. I will put the ice cube trays into the freezer after I measure 7.5mL into each compartment and then after a few hours I will take it out.
Photos
I have no idea why but the photos did NOT upload !! ==
I'm going to try again.
Ok so the photos are of rounded and harsh square shaped cubes and long semicircular sticks
Starting
I have just taken all the ice cube trays out of the packaging and taken photos of all of the empty trays to show you how they look (as my explaining of the trays isn't very good). I will attach all 6 images to this post.
Starting the Assignment !!!!
OK, I'm not sure when this assignment is due, but I started thinking about it the other week and decided I should start working on it soon before it gets too late. Anyhow, today I went and bought all the stuff that I need including:
* 3 different ice cube trays - two of them were square shaped; one had curved edges at the bottom the other one had perpendicular edges i.e. not curved. The last one was a rectangular long shaped ice cube tray - very long but at the bottom it curves like a circle.
* Thermometer so I can measure the water that I'm using for my assignment.
* Measuring Cups - instead of a little measuring cup with 1mL intervals, I bought one of those cooking sets that are measured in spoons BUT it also has how many mL's the cup can hold.
Also I will need to make several adjustments to my Method as my assignment is to figure out if the shape of the ice cube will affect the melting rate NOT if the temperature will. In my next post I will write out my final Method all polished and ready to go !
* 3 different ice cube trays - two of them were square shaped; one had curved edges at the bottom the other one had perpendicular edges i.e. not curved. The last one was a rectangular long shaped ice cube tray - very long but at the bottom it curves like a circle.
* Thermometer so I can measure the water that I'm using for my assignment.
* Measuring Cups - instead of a little measuring cup with 1mL intervals, I bought one of those cooking sets that are measured in spoons BUT it also has how many mL's the cup can hold.
Also I will need to make several adjustments to my Method as my assignment is to figure out if the shape of the ice cube will affect the melting rate NOT if the temperature will. In my next post I will write out my final Method all polished and ready to go !
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