Water Testing
Today you will see the stream tested for three different factors; temperature, pH, and Dissolved Oxygen (D.O.). As you perform the various tests, record your information in the data.Temperature: You will see the digital temperature instrument. Record the temperature of the water.
Stream point 1______________
Stream point 2______________
Stream point 3______________
PH: pH stands for the power of hydrogen. It is a measure of acidity and basicity. Those things that are acidic have a pH of less than seven. pH range from p 0 to pH 14.
Stream point 1______________
Stream point 2______________
Stream point 3______________
Dissolved oxygen: Dissolved oxygen is the amount of oxygen that is dissolved in the water. This is essential to the life of organisms which live in the water.
Stream point 1______________
Stream point 2______________
Stream point 3______________
page 7
Camouflage
in Nature
Pick up
5-8 natural objects in and around the stream. Try to collect different
colored ones. (Remember we are visiting other creatures’ homes! Do not
pick any live plants or animals. ) Look carefully at each object. How
many shades of colors do you recognize? Use three primary colors of water
color pigments to imitate from each natural object.
page 8
