Fresh Water and Waste Water Microorganisms
Hands-On Length: 45 Minutes
The Fresh Water and Waste Water Microorganisms activity introduces students to the microscope and the importance of microorganisms in our environment.
Students will learn about microorganisms in water and wastewater that can cause illness, as well as microorganisms that help clean wastewater.
Microscopes can be provided; however, they are limited in number and students will need to share. Slides and worksheets will also be provided.
Purpose
To investigate and observe microorganisms found in water and wastewater, their relationship to waterborne diseases, and their application in wastewater treatment.
Summary
In this exercise, students will use microscopes and prepared slides of various microorganisms found in water and wastewater. Students will be introduced to their association with waterborne diseases and their role in treating wastewater.
Background
Water and wastewater microorganisms are diverse communities of bacteria, protozoa, fungi, and metazoa. Microorganisms are too small to be seen without a microscope. They include organisms such as bacteria, algae, and protozoans.
When infectious microorganisms contaminate drinking water, they can multiply in the body and cause illness. Low levels of infectious microorganisms are present throughout our environment and can occasionally cause illness in healthy people.
On the other hand, some of these microorganisms act as nature’s clean-up crew. They break down organic waste and remove nutrients. Many of these microorganisms are closely monitored to help protect public health.
Materials
- Student microscope
- Prepared microscope slides of various organisms (see Appendix 1)
- Water and Wastewater Microbiology Lab Report
Presentations
- How to Use a Microscope
- Freshwater and Waste Water Microorganisms
