1. How did caulk A adhere to each
2. How did caulk B adhere to each
3. How did caulk C adhere to each
4. Is there a surface on which all
caulks' adhesion quality was excellent?
5. Is there a surface on which all
caulks' adhesion quality was poor?
6. When you repeated the experiment
yourself, did you get similar results to the first
7. When you compared your results to
those of other groups was there some consistency, or did the
results strongly depend on the persons performing the
8. What are possible sources of error
in the experiment?
9. Are you confident in the reported
values, or do you believe the errors in the experiment are
10. How could you alter the experiment
to place more reliability in your results?
11. Are the differences significant
enough to conclude that one caulk is better than another one
when comparing on the same substrate? If so, which and why?
If not, why not?
12. Based on all of the evidence,
which of the following conclusions would you draw?
a. There are significant
differences between these caulks, and one can definitely see
these from our adhesion results.
b. There may be differences between
the caulks, but the experimental error is too great to draw
any definitive conclusions.
c. There are definitely no adhesion
differences among the caulks we tested.
* Note: This last
question (#12) could be used as part of a quiz or test on
the unit to which this lab is related. You could just ask
the students to write their own conclusions, and hopefully
theirs will be somewhat similar to one of the above