The effect of the volume of hot
water on cold water.
By: Josh and Jessa
Purpose
Does volume of hot water affect
the temperature of ice cold water
when mixed together?
Hypothesis
The more hot water
added to the cool water,
the temperature will
increase.
See the
fog???
Independent and Dependent
Variables
IV: Hot Water (mL
DV: New Temperature (mL)
Levels of IV:
None
20 mL
25 mL
30 mL
35 mL
40 mL
45 mL
1
1
1
1
1
1
1
Constants
•
•
•
•
The specific amounts of hot water
The amount of cold water
The same type of heat
The same equipment
Procedures
1.
2.
3.
4.
5.
Pour 20,25,30,35,40, or 45 mL of water into a beaker.
Heat the specific water amount to 90 degrees Celsius.
Add this to a prepared beaker that has 50 mL of ice cold water
(with out ice).
Record temperature of the mix.
Repeat steps 1-4 for each amount of hot water intervals.
Your set up
should be
similar to this!
Hot Water (mL)
Temp. of 50 mL of cold
water (degrees
Celsius)
Temp. of mixed
(degrees Celsius)
None
5.6
5.6
20
5.6
28.8
25
8.4
32.8
30
7.2
35.4
35
6.0
36.9
40
4.8
40.5
45
4.2
42.1
Results (continued)
Summary of Data
According to the data, when adding more amounts
of hot water to the cold water, the temperature
increased by approximately 2.66 degrees Celsius as 5
more mL of hot water was put into the cold water.
The hypothesis, the more hot water added to the
cool water, the temperature will increase, was proven to
be correct.
By looking at our data, volume does effect the
outcome. This leads us to ask if we would do more hot
water than cold water, would the temperature go higher
or lower? We also would want to know if the
temperature would stop at 100 degrees Celsius like
when boiling water?