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Science - Earth Science
Standard 4 Objective 2
2 class periods of 45 minutes each
In this exercise, students will observe and list abiotic factors in an aquatic system and measure four of them (pH, dissolved oxygen, turbidity and temperature).
* For information on equipment for loan or for purchase, contact USU Water Quality Extension at (435) 797-2580 or www.extension.usu.edu/waterquality
To observe and list abiotic factors in specific ecosystems.
For background information:
Applying the Data:
Have the students compile and graph the data to demonstrate a particular pattern. For example:
See sample graphs below and on the following page.
(See additional discussion questions relating to each measurement in the Teacher Resource pages.)
Lesson plan authors: Andree Walker and Nancy Mesner (Utah State University Water Quality Extension)
This curriculum was made possible through funding from the Environmental Protection Agency, the United States Department of Agriculture, Cooperative State Research, Education, and Extension Service, the Utah Division of Wildlife Resources, and Utah State University Extension.
Additional resources can be found on the USU Stream Side Science 9th Grade Curriculum web page.