Transcript Main Presentation Title (42 pt Univers 57 Condensed)

Water Testing
School Name
Date
Volunteer Name
Introduction
A little bit about me.
Why is important to talk about water testing?
What are we going to do today?
•
Learn something about water testing.
•
Learn how to carry out simple tests of water quality.
A Few Water Testing Facts
Water quality is based on the results
of testing for certain parameters or
characteristics, such as pH
(acidity) and nitrate levels.
Testing with our kit does not guarantee
drinkable water. Professional
testing is needed.
Results of water testing often suggest
a need for additional action, such
as eliminating pollution.
Introduction to the Kit
Let’s learn more about the SEED water
testing kit and how to carry out the
various tests.
Water Testing Kit
Notice the three sizes of bottles, the
four different packets of tablets,
and the plastic color comparison
chart.
Affix the thermometer strip and the
turbidity disc to the inside of the
container.
Water Collection
Water Collection Procedures
Safety Procedures
Water for testing must be collected carefully.
Safety procedures must be followed.
Wear goggles, gloves, and boots.
Optional: Collect organisms from the water.
Water Quality Tests
Turbidity*
Temperature*
pH
Nitrate
Phosphate
Dissolved Oxygen*
Biological Oxygen Demand**
Coliform Bacteria**
*Performed when water is collected.
**Extra time needed for testing.
Turbidity
Turbidity Test Procedure
Turbidity is a measure of the clarity of
the water.
Fill the kit container with water to the
line, and then look at the turbidity
disc in the bottom of the container.
Compare with the laminated color
card in the kit.
Temperature
Temperature Test Procedure
Temperature is a measure of the heat
distribution in a sample of water.
Fill the kit container with water to the
line. After one minute, read the
temperature on the strip
thermometer.
pH
pH Test Procedure
pH is a measurement of the acidic
or basic quality of water.
Compare the color of the test
sample to the colors on the
laminated card.
Nitrate
Nitrate Test Procedure
Nitrate is a nutrient needed by all
aquatic plants and animals to
build protein.
Compare the color of the test
sample to the colors on the
laminated card.
Phosphate
Phosphate Test Procedure
Phosphate is a nutrient needed for
plant and animal growth.
Compare the color of the test sample
to the colors on the laminated
card.
Dissolved Oxygen
Dissolved Oxygen Test Procedure
Dissolved oxygen is a measure of
the level of oxygen in water
that is available for organisms.
Record the water temperature.
Compare the color of the test
sample to the colors on the
laminated card.
Biological Oxygen Demand
Biological Oxygen Demand Test Procedure
Biological oxygen demand is a measure
of how much dissolved oxygen is
used by bacteria in the water.
After the water sample is wrapped and
stored in darkness for five days,
perform the test and compare the
color of the test sample to the colors
on the laminated card.
Coliform Bacteria
Coliform Bacteria Test Procedure
The presence of coliform bacteria is an
indication of sewage or fecal
contamination.
Two days after adding water to the tube
with the tablet, compare the color of
the test sample to the colors on the
laminated card.
Water Testing Summary
A water testing kit can help us learn about the
characteristics of a water sample.
We can use the Water Testing SEEDKIT to test for
turbidity, temperature, pH, nitrate, phosphate,
dissolved oxygen, biological oxygen demand, and
coliform bacteria.
Negative findings should be verified by a professional
water testing laboratory.
Follow-Up Ideas
Search the Internet for additional water testing
information and resources, and make a presentation
to the class.
Develop an animation, song, or skit about water testing.
Think about a water testing project with another school.
Additional Links
Cambodia Water Testing
Kemaman Water Testing
Atyrau Water Testing