Materials
- Oxygen probe (1)
- Vernier Labquest (1)
- Computer/Paper (1)
- Water sampler item number 5460 (1)
- Wood stick (1)
- Water bottle (1)
- Masking Tape (1)
- Scissor (1)
- Market (1)
- Sample bottle (6)
- Measuring tape (1)
- Phosphate Field Test Kit (1)
- Nitrate Field Test Kit (1)
- Sulfide Field Test Kit (1)
- Stopwatch (1)
- Drinking water
Field Procedure
- Prepare all materials
- Tape masking tape onto every sample bottle (for labelling)
- Collect the water sample from the canal *
- Attach the oxygen probe and vernier labquest togetherPower on the vernier labquest and remove the solution that is attached to the oxygen probe stick
- Insert the oxygen probe stick into the sample bottle for approximately 2 cm deep from the water surface (Don’t move both the oxygen probe and the sample bottle and make it still as possible because it can increase the oxygen)
- Time it for 2 minute with a stopwatch
- After 2 minute has gone, record the oxygen concentration that appears on the screen of the vernier labquest onto the masking tape on the sample bottle and also label trial 1 and the location of water sample.
- Wash the oxygen probe stick with drinking water and insert it into the solution that comes with the oxygen probe.
- Repeat (From step 5 to 9) for trial 2, canal
- Repeat (From step 5 to 9) for trial 3, canal
- Collect the water sample from the pond *
- Repeat (From step 5 to 9) for trial 1, pond
- Repeat (From step 5 to 9) for trial 2, pond
- Repeat (From step 5 to 9) for trial 3, pond
- Record all the datas collected of oxygen onto data chart
* Method for how to collect water sample
- Measure the string of the water sampler item number 5460 for 1 meter with the measuring tape and mark it with a marker or masking tape.
- Drop the water sampler item number 5460 into the water and wait for it to sink down
- When the mark hits the surface of the water, pull both side of the string
- Pull the water sampler item number 5460 out of the water and get your sample water into a sample bottle
- Incase you don’t have a water sampler item number 5460, attach a plastic water bottle with a wooden stick with tape
- Measure 1 meter starting from the bottle lid and mark it with a marker or masking tape
- Insert your D.I.Y water sampler item into the water until it reaches the mark
- Pull your D.I.Y water sampler out of the water and get your sample water into a sample bottle
Lab Procedure
- Select a water sample and follow the instructions in Phosphate Field Test Kit
- Repeat step 1 for all samples
- Record all the datas collected of phosphate onto the data chart
- Select a water sample and follow the instructions in Nitrate Field Test Kit
- Repeat step 4 for all samples
- Record all the datas collected of nitrate onto the data chart
- Select a water sample and follow the instructions in Sulfide Field Test Kit
- Repeat step 7 for all samples
- Record all the datas collected of sulfide onto the data chart