Day 4: Water Testing

Objectives

Students will be able to analyze and evaluate sample water data in order to demonstrate knowledge of water quality.

Lesson Overview

Different areas of the world have varying amounts of renewable and nonrenewable natural resources available. These resources may be utilized in many ways based on human needs. Obtaining and utilizing these resources will have a direct affect on the quality of the environment in a given area.

Time: 
2, 45 minute periods for testing and analysis; 2 additional days for presentations
Setting: 
Schoolyard and Classroom
Materials
  • LoMotte Water testing kit
  • Water samples from various sources in the area
  • Supplies to assist students with their presetations
Procedure

EngagementReview various components of water in the area.  Show different samples that have varying amounts of nutrients.

Exploration: Working in groups of 3-4, students should take a sample of water from the enclosed pond. It is suggested that the teacher collect the samples, so as to avoid contamination.

Explanation:  Students should test the pond water for pH, phosphate, nitrate, and dissolved oxygen. Students should record this data in their journal.  Review the results as a class

Follow directions as included in test kit. Check with school system for approved venders.  Type of kit should be selected based on required tests.  Kit used for this investigation was
Code 3-5886

 

Extension: Students will test a sample of water from the Chesapeake Bay. Students should record this data in their journals.  Review the results as a class.

Evaluation: Compare the two.  How are they same/ different?  A Venn Diagram is suggested to guide the student response. Why? Present the information to the class.  Presentations must use two or more visual aids: Pictures, Video, Music, Power Point, Charts/Graphs, Posters, Models, Website.

Cary Institute of Ecosystem Studies | Millbrook, New York 12545 | Tel (845) 677-5343

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