Data Table 1-Activity 1: Fill in the data table and submit with the Scientific
Method Lab Quiz.
Run
No.
Cup
Temp. (˚C)
Time (sec.)
Observations
1
C
1
RT
1
H
2
C
2
RT
2
H
3
C
3
RT
8
20
65
10
25
60
6
22
250 sec
74
12.5
150
70.8
11
233
80.5
3
H
55
14.3
dissolved slow
stayed at the surface
dissolved
stayed at the surface dissolved a little
dissolved a little
dissolved quickly
dissolved a little
dissolved a little
dissolved fast
Avg.
C
300
dissolved slowly
Avg.
RT
Avg.
H
4
30
67
60
dissolved slowly
17.8
dissolved fast
1. Using graphing software such as Excel®, graph the results of Activity 1. Please
see the Introduction to Graphing manual for guidance. Copy and paste your
graph here.
1
Activity 2 Table (Testing the New Hypothesis)
1. will the alka seltzer remain at the top if the temperature
is constant?
2. will the time be the same at the same temperature?
3. if i add more water will the dissolve time be the same?
4. if i add less water will it dissolve at all?
5. if i keep it at a constant temperature will it be the same
every time?
State the hypothesis.
Identify the
independent variable.
Identify the dependent
variable.
List the controlled
variables.
How will the dependent
variable be measured?
If the hypothesis is true,
what results are
expected?
if i add more water will the alka seltzer dissolve faster
?
temp
time
the amount of water used per activity
by the time it takes to dissolve
it will dissolve fast
© 2016 Carolina Biological Supply Company
2
© 2016 Carolina Biological Supply Company
3
Data Table 2 (Testing the New Hypothesis)
Run
No.
Manipulated
Variable
Time (sec.)
Observations
1
rt 26
50.33
dissolved a little
1
c 13
97.6
no reaction stayed at top
1
h 76
11.36
water became foamy
2
rt 22
43.6
dissolved a little
2
c 11
110.8
stayed at the surface
2
h 66
16.23
dissolved fast
3
rt 30
37.8
dissolved a little
3
c5
289.3
stayed at the top with a little bit of bubbles
3
h 78
9
dissolved fast
Avg.
rt 21
39.5
a little bit of bubbles
Avg.
c9
210
little bubbles
Avg.
h 78
8.9
dissolved fast
What could have been done in either activity to make the results more
reproducible? we could have had specific numbers in temperatures and waters
to get more reproducible results.
© 2016 Carolina Biological Supply Company