Description

Understand the importance and value of fresh water
and the need to protect and conserve this valuable
resource. Realize that a variety of factors, including
natural ones, contribute to the overall problem of
water pollution. After completing this lab, students
should understand the difference between point
source and non-point source pollution and understand
the role of nitrates and phosphates in the process of
eutrophication. They will observe and examine the
effects of nitrates, the effects of phosphates, and the
effects of a combination of nitrates and phosphates in
miniature ‘ponds’. There are enough materials for 15
groups. Teacher’s manual and student copy masters
are included.