Testing the waters...
We splash in it, swim in it, fish from it, but are our waterways really
safe? With the help of water testing kits from DonorsChoose.org, 60 seventh and
eighth grade science students set out to answer this question. They discovered
that a nearby creek had excessively high levels of nitrogen, traced this to
fertilizers being used nearby, and formulated and tested a new hypothesis: that
a garden can grow just as well without fertilizers. As they examined the impact