Testing of water is important to humans because we need clean, fresh
water. Keeping the water healthy for plants and other organisms also
provides recreational sports for humans. Polluting our water supplies
causes a ripple effect that eventually harms the original polluters.
Many people feel that just put a little oil in the storm drain or
riding gas driven boats on drinking water reservoirs won’t hurt
anything. If only one person polluted, maybe nothing would happen. But
that is never the case.
Humans were originally nomads because their water and land
would become polluted from their use. If you defecated into your water
supply, mysterious diseases would occur. It took humans a long time
before they figured out, they were the ones causing the health problems.
This lab looks at testing temperature, dissolved oxygen, nitrates,
and pH of water. These are only four tests, out of many, you can
determine for water. Directions are on your lab sheet. First, read the
information on why these tests are important and then perform the test.