- Helps teachers guide students through the study and measurement of changes in lake, stream, pond or aquarium water
- Measures dissolved oxygen, pH, nitrate and ammonia
Grades 4 to 8. Class size: 50 students.
|Study and measure changes in lake, stream, pond or aquarium water|
|Complete lecture materials, illustrated handouts, teacher tips, test procedures, testabs™ reagents, data sheets, wrap up games|
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