Type of web
A lesson that uses websites as a source of background
information and as a source for interpreting experimental
One day for background Web activities, one day for doing the
experiments, and one day for Web activities that will guide
the interpretation of the experiments.
Aug. 6, 1999
The Web Science Workshop lessons were created in cooperation
with the Exploratorium Teacher
developed and maintained by Deborah
San Francisco, CA 94123
doing chemistry at the Port of San Francisco.
In this activity you are to do three experiments in which
reactants are combined to produce an unknown substance.
Before doing the experiments, you need to complete two
- First, read
the Web sites and answer the questions regarding
write down a separate experimental design for each
experiment. (See the
Experimental Design Page
for instructions on how to concisely describe the design
of experiments that involve the observation of a chemical
reaction.) After you complete both of the above
assignments you will be ready to do the three
experiments. Finally, answer the questions in the
and Analysis Worksheet.
Be sure to carefully read this site and check out its
links. Complete the Background
to test your understanding of the background
Design: Remember that you need to complete the three
experimental designs, which can be gleaned from each
procedure, before you do the experiments.
for the formation of Nylon.
for the formation of "Slime" from Polyvinyl Alcohol and
for the formation of a "Glob" from Elmer's Glue and
and Analysis Worksheet Before completing the
relax and check out the Colorado physics Web site. Find the
applet on water
, "a dipole molecule in a changing field." Spend a few
minutes in order to become accustomed to how water can
swivel in response to a moving ion.
you have any suggestions or some constructive criticism of
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mail to the author.