Water Quality Testing
Bring in a water sample from a pond, lake, stream, the ocean, backyard pool, well, or fountain.
Watch this video to see how to take a water sample: https://youtu.be/8440sn2ThRE
Determine whether a water sample is acceptable for humans to drink and for healthy aquatic life.
➢ Write a hypothesis about whether your water will meet safe drinking water standards. Why or why not?
No it will not because fish water is dirty and not clean.
➢ Write a hypothesis about whether your water will be healthy for aquatic (fish) population. Why or why
not?
Yes I think it is healthy for aquatic life since it was from a live fish tank..
Procedure: Perform the water quality tests when they are rotated to you. Make sure you follow all directions.
Use the Reference sheets to fill in some boxes.
pH Test
The pH in the fish
What does the test tell us? water
From its pH, we
can determine
Why is this reading what aquatic life
important? can live in it
What is the reading of
your water sample? 6 (Yellow)
Does your water sample
meet legal drinking water
standards for this test? No Explain: legal drinking water is 7
Is this reading acceptable
for aquatic life? Explain. Yes Explain: it’s essential or most aquatic life
, Dissolved Oxygen Test (If your sample is from the ocean, pond, lake or stream, this test won’t be accurate due to
BOD, but take it anyway)
Amount of
dissolved oxygen
What does the test tell us? in the water
Displays
the water can
Why is this reading support most
important? aquatic life
What is the reading of
your water sample?
Does your water sample
meet legal drinking water
standards for this test? Explain:
Is this reading acceptable
for aquatic life? Explain. Explain:
Nitrate Test
Amount of nitrate
What does the test tell us? in fish water
Shows us the
Why is this reading existence of plant
important? life
What is the reading of
your water sample? 40ppm
Does your water sample
meet legal drinking water Explain: drinking water that is legal should have less than
standards for this test? No 10ppm
Is this reading acceptable
for aquatic life? Explain. No Explain:0-40ppm is mostly safe for all aquatic life