Lesson Two - Explore the concept of water quality

A. "Does this aquarium have good water quality?"

Test the classroom aquarium water using materials and equipment that may be on-hand at school…

• Temperature
• Universal pH paper
• pH meter
• Conductivity meter
• Dissolved oxygen test kit

Also test tap, distilled, bottled and mineral water along with soft drinks…

• Were there measurable differences in the water samples? Why?





• Would you drink the aquarium water? Why or why not?





• Would you drink river water? Why or why not?





• Why can we drink this tap water?





• What constitutes good water quality?