Observations:

I found it interesting that when I was mixingthe sugar and the salt into the water, It had different effects on the water.When I mixed the salt into the cold water, the water was cloudy and slowlybecame clear and there was a small amount of salt at the bottom. When I mixed the salt into the hot water, the water was foggy and slowly became clear. There was also a small amount of salt on the bottom although there was a smaller amount of salt on the bottom compared to the cold salt water. When I mixed the cold water and sugar together, the water was clear, but there was a small amount of sugar on the bottom of the measuring glass. When I mixed the hot water and the sugar together, the water was clear and the sugar was completely dissolved.

Here are some pictures of the end results:

This is what the ice looked likeafter it was frozen. Take notice of how the water that had salt in it frozeclearer than the water that had the sugar in it. The ice cubes on the left of each tray were salt. The ice cubes on each right side of the tray were sugar.For some reason the ice cubes with sugar froze more opaque.

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I made sure to label to know which is which. I also put a 1 to mark where the 1 teaspoon started.
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I noticed that the cold and hot water with salt didn’t freeze completely because when I would press on an ice cube either from the hot or cold salt category, there would be a small amount ofwater. It was large but it was there.
Here is some evidence. This is a cold salt water ice cube. It was the same for the hot salt water ice cubes.
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Compare this to an ice cube from the cold or hot sugar category. There isn’t any evidence of remaining water. It is frozen completely.

This is a picture of a cold sugar ice cube. Notice there isn’t any water remaining when I pressed on the ice cube.
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So overall, the ice cubes that had salt in them froze clearer than the ice cubes that had sugar in them. The ice cubes with salt also didn’t completely freeze. There was a small amount of water when I pressed the ice cube with my finger. In contrast, the ice cubes with sugar didn’t have any remaining water when I pressed down on the ice cube with my finger.

Results:

This is the table that was used to show the results of the experiment. I added what thetemperature of the water was and where the standing of the individual ice cubesfell even though I didn’t use that information in the graph.

Types of water used
Number of teaspoons
Temperature of water in degrees Fahrenheit
Time it took for the water to freeze completely in minutes
Standings
Cold salt water
1
58
240
17
Cold salt water
2
54
270
18
Cold salt water
3
54
300
21
Cold salt water
4
53
315
22
Cold salt water
5
53
330
24
Cold salt water
6
53
345
25
Cold salt water
7
52
360
28
Cold salt water
8
51
405
31
Cold sugar water
1
56
120
1
Cold sugar water
2
54
150
3
Cold sugar water
3
52
180
5
Cold sugar water
4
52
210
7
Cold sugar water
5
52
225
8
Cold sugar water
6
52
270
11
Cold sugar water
7
51
285
12
Cold sugar water
8
51
300
13
Hot salt water
1
90
270
19
Hot salt water
2
96
285
20
Hot salt water
3
99
330
23
Hot salt water
4
100
345
26
Hot salt water
5
100
360
27
Hot salt water
6
101
375
29
Hot salt water
7
102
390
30
Hot salt water
8
103
420
32
Hot sugar water
1
94
135
2
Hot sugar water
2
99
165
4
Hot sugar water
3
99
195
6
Hot sugar water
4
100
240
9
Hot sugar water
5
101
255
10
Hot sugar water
6
102
285
14
Hot sugar water
7
103
300
15
Hot sugar water
8
103
315
16

This is the graph depicting how long it took to freeze the different teaspoon amounts of salt and sugar added to the water. Like I said before, I didn’t use the temperature or the standing in the graph. I just used the teaspoon amounts ofsalt or sugar and the time (in minutes) that it took for the water to freeze. I only used these two because that is what I am trying to prove, how long ittakes for water to freeze if it has different amounts of salt or sugar added to it.

Graph.png


Analysis:

I expected that the cold sugar water would freeze the fastest and I was correct. I also expected that there would be a negative association and that the relationship would be strong. I was wrong because there is a positive association. But I was correct in expecting there to be a strong relationship. The correlation of hots ugar water is 0.98. The correlation of cold sugar water is 0.99. The correlation of hot salt water is 0.96. And the correlation of cold salt water is 0.97. All of these correlations are close to one which means that these have a strong relationship. There is a positive association because as more teaspoons of salt and sugar are added, the longer it takes for the water to freeze.

Some things that could have altered the data in this experiment are that while I was putting the hot water into the tray, the temperature of the cold water that was already in its tray could have risen making it less cold. So manily the change of temperature is what could have altered the data.