Page 12 - Fuel Cell Teacher Edition

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wo sets of instructions have been included PRE-LAB PREPARATION:
in this kit for your benefit. The detailed lab
Tprocedure focuses on a step-by-step process WARNiNG!
to construct a fuel cell. This is appropriate for Read the warning label for sodium hydroxide
classes with tight time constraints. The open ended (NaOH) and review the procedures for spill
lab is written to utilize the principles of the Next- cleanup and exposure treatment. Make sure
Generation Science Standards. to emphasize its danger to your students.
Immediate contact with the skin does not
The open-ended lab allows the teacher to take on the cause any damage, but if it isn’t washed off,
role of a guide asking questions to stimulate thought severe chemical burns will result. The best way
and assist students in articulating and revising their to get students to understand its danger is to
explanations and models. The following tips are tell them that it’s used to dissolve bodies of
presented to assist you in conducting an open-ended dead animals into liquid.
lab. You may wish to modify them according to the
performance level of your students.

Xii TOTAL REDOX™ – FUEL CELLS TOTAL REDOX™ – FUEL CELLS Xiii