1. Design:
Variables:
Independent Dependent Controlled
Time 30 seconds intervals
for taking temperatura.
Temperature of wáter. Volume of water.
Intensity of flame.
Diagram:

2. Data Collecting and processing:
Time
(s)
Temperature(Cº)
0 16
30 18
60 24
90 29
120 34
150 41
180 45
210 51
240 56
270 61
300 65
330 70
360 74
390 78
420 82
450 86
480 87
510 87
540 87
570 87
600 87

3. Conclusion and evaluation:

4. Concluding:
Based on the data collected, it’s seen that the temperature of water increases almost at
the same rate, but when it boils (87ºc) the temperature stops rising.
Evaluation
Limitations Effects Improvements
The beaker had an
approximate measure.
There was too much water.
The volume of water wasn’t
exactly 150ml.
The experiment took
unnecessary time.
Use a measuring cylinder
with accurate measures.
Use 50ml instead of 150ml.
Do the experiment various
times with different amount
of water.
Questions:
1. Why didn’t we reach the boiling point of 100 degrees Celsius?
-One of the reasons our boiling point was below a 100c is because of our elevation. Also
because it was pure water (different types of water have different boiling points).
2. Why did the temperature stop increasing if we kept heating up the water?
-Because when a substance boils the molecules are moving the fastest as they can
even if the water is being heated, as the molecules cant move faster, the temperature
does not increase.

5. The English School
Lab report 1
Analysis of temperature increase in sample of water
Elisa Mazuera
9-1
Fabiola Garzon

6. 23 of October 2009

7. 23 of October 2009