http://www.ncsu.edu/sciencejunction/depot/experiments/water/
Water What-ifs is a part of Science Junction,
a science education Web site that has a goal of creating connections
between researchers and faculty at North Carolina State University,
teachers, parents, and students. Water What-ifs was created by April
J. Cleveland and Lisa L. Grable of the SERVIT Group at N.C. State for
the purpose of encouraging inquiry-based investigations of water quality
in North Carolina and Delaware. Within this site, teachers and students
will monitor water quality, record data, analyze the water quality of
their local watershed, and create a database of information to be shared
from year to year. An online tutorial is provided on water quality testing
using LaMotte test kits and CBL (calculator-Based Laboratories) technology.
Students will use critical thinking skills to determine how certain
factors, anthropomorphic or natural, can change the quality of an aquatic
ecosystem. Water quality parameters such as pH, temperature, dissolved
oxygen, nitrates, phosphates, and macroinvertebrate surveys will also
be addressed at this site. Three lessons are provided for each parameter
to help teachers create a water quality unit that will be used in conjunction
with the water quality testing program.