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Section 1 of 13
Water Rangers certification course - educator's copy
Use this form with your students to test them on Water Rangers protocol! Simply click on the three dots at the top right of the page and make your own copy. You can edit the title and instructions specific to your classroom.

Download the PDF Certified Water Ranger certificate
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Please make a copy of this course and save it to your own personal Google Drive account
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Section 2 of 13
Choosing a sample location
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 Select all that apply: You should pick a sample location that...
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You can access safely
You can return to often
You're passing by and won't be returning to
You love visiting
Is the deepest point of a lake
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Section 3 of 13
Making a schedule
Making a schedule and sticking to it is important! If you want to find out more, head to waterrangers.ca/plan. Listen to Luke and answer the questions below.
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When is the Water Rangers official testing day?
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The last Sunday of every month
There is no Water Rangers official testing day
Every other Saturday
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Select all that apply: How often should you test?
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Monthly
Every two weeks
Whenever I can
Once a season
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At what time of the day should you test?
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It doesn't matter
At the same time every time I test
In the morning
In the evening
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Why do you need to test a water at regular intervals?
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To see trends over time
You never know if you did the test right the first time
To see what's new
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Section 4 of 13
Weather
Listen to Kat explain why noting weather is important and answer the questions.
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What parameter(s) can the weather impact?
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Conductivity
pH
Hardness
All parameters can be impacted by weather
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add "Other"
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Select all that apply: What kind of weather events should you write down on your notepad?
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Wind
Precipitation
Cloudiness
Sunshine
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add "Other"
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You need to note the weather for which time period?
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The day of the tests
The day of the tests and the previous day
The day of the tests, the previous day, and the following day
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Section 5 of 13
Air temperature
Air temperature will impact the different parameters we measure. Listen to Kat explain how we accurately measure air temperature. If you want to learn more, visit waterrangers.ca/air-temperature.
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At what height from the ground should you hang your thermometer?
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0.5m
1m
2m
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Where should you hang your thermometer?
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Close to me
Around your neck
In a shaded spot
In a sunny spot
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How long should you wait to take your air temperature reading?
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A few minutes
There's no need to wait
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Section 6 of 13
Taking a sample
Now that that you have a schedule and you've noted the weather and air temperature, you can take your water sample.
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How deep should you take your water sample?
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At the surface
At least 15cm below the surface
1 meter or deeper
As deep as you can reach
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Why should you take your water sample at that depth?
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The top layer isn't representative of the water body
The top layer may be dirty
You might disturb aquatic life if you take your sample too deep
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If you can't reach the water easily, what can you do?
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Use your reacher stick
You shouldn't test at this location
Jump in!
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Section 7 of 13
Conductivity
The first thing you'll want to measure is conductivity. Find our how by watching the video below. If you're curious to find out more, visit waterrangers.ca/conductivity.
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What does conductivity measure?
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Water's ability to conduct electricity
Waters ability to conduct sound
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How can you know if the conductivity of your water body is normal?
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Test regularly to see if there are changes
Taste the water to see if it tastes salty
Look it up online
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What are the units of conductivity?
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microsiemens per centimeter (µS/cm)
Ohms (Ω)
metres per second (m/s)
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What does it mean if you have a decimal reading?
Question Type
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There's a problem with your conductivity meter
The units are millisiemens per centimeter
Your conductivity reading is really low
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Section 8 of 13
Calibrating your conductivity meter
Calibrating your conductivity meter is important for making sure your results are as accurate as possible. Follow along with Luke to calibrate yours.
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How often should you calibrate your conductivity meter?
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Every time you use it
Once a year
Once a week
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Why is it important to calibrate your conductivity meter?
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To make sure that the probes still function well
To keep it accurate and make sure it stays accurate
To keep it from losing its charge too quickly
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Section 9 of 13
Test strips
Learn about how to use your test strips and everything you can test with them. If you want to learn why we use these, visit waterrangers.ca/teststrips.
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What do test strips measure?
Question Type
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Coliforms, pH, alkalinity, helium
Chlorine, pH, alkalinity, hardness
Coliforms, pH, airflow, hydrogen
Chlorine, pH, alkalinity, helium
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When handling the test strips, your hands should always be...
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Clean
Dry
Gloved
Wet
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How long do you dip your test strip for?
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2 seconds
20 seconds
2 minutes
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How long do you have to wait until you read your test strip?
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2 seconds
20 seconds
2 minutes
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What do you record if your reading falls between two colours?
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The closest lower value
An average of the two values it falls between
The closest higher value
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Select all that apply: What if you have trouble seeing the different colours?
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Ask a friend what they see
Use the machine learning algorithm
Take a guess, your odds are pretty high
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Section 10 of 13
Dissolved oxygen
The dissolved oxygen test is our most difficult test! Make sure you understand what you should do before trying it. We don't recommend for children under 9. Want to learn more? Visit waterrangers.ca/oxygen.
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How do you break the glass ampoule for the dissolved oxygen test?
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Place the tip in a ridge of the sample cup and pull towards yourself
Break it with your fingers
Push the ampoule down into the small sample cup
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Why is it important to do the dissolved oxygen test quickly?
Question Type
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The chemical may spill out of the ampoule
The water sample starts mixing with the ambient oxygen as soon as you take it
The reagent in the ampoule can't be exposed to the sun very long
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How many times do you want to let the bubble in the ampoule  go up and down?
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Once
Twice
Thrice
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How long do you need to wait before taking your reading?
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2 seconds
20 seconds
2 minutes or more
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Section 11 of 13
Clarity
Use your Secchi disk to measure water clarity. Depending on where you test, you might not be able to use your Secchi disk. Watch the video to learn how to use it and head over to waterrangers.ca/secchi to find out more.
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For how long has the Secchi disk been used to measure clarity?
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Over a thousand years
Over 200 years
Water Rangers invented this tool
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Why should you remove your sunglasses when doing visual tests?
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They will make it hard for you to see in the dark
They will impact how you see colours
Your sunglasses are for sun, not water
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When do you take your reading?
Question Type
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When the Secchi disk touches the water
When the reel says 2 meters
When you can no longer see the Secchi disk
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What else can you use your Secchi disk for?
Question Type
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Measure the depth of the water body
Check chlorine levels
Measure the flow of the water
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add "Other"
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How long is the measuring tape attached to your Secchi disk?
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5m
20m
40m
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Section 12 of 13
Sharing your data
Once you've tested the water, you're not done! Sharing your data is just as important. You're part of a larger movement! Every time you share data, you help fill data gaps.
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Select all that apply: Where can you record your information?
Question Type
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On the Water Rangers iOS app
On the notepad included in your kit
On the Water Rangers online app
On your arm
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If you choose to share your data, when should you share it?
Question Type
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At the end of the testing season
As soon as you're done testing
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Section 13 of 13
Bonus questions!
Do you want to dig a little deeper? Here are some bonus questions! You can find the answers on: waterrangers.ca/formation
If you want to use other equipment and test more parameters, can you share your data on the Water Rangers platform?
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Yes
No
Maybe, I don't know!
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Select all that apply: What are the best ways to get involved in water testing?
Question Type
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Join a local group or organization
Buy your own Water Rangers testkit
Defend your local water bodies
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add "Other"
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