Nitrates+Test


 * Period 6 Group F: Matt, Laura, and Juliette**

We believe that the PPM Nitrate- Nitrogen level will be higher than if you used distilled water which would be 0 PPM Nitrate- Nitrogen.
 * Hypothesis:**

If the PPM level s higher than the distilled water PPm level, and if we test it using our procedure below, then the PPM level will be very high for the stream sample.
 * Prediction:**

1. Put together the octa- slide viewer. 2. Fill the tube with 5 ml of stream water. 3. Add the tablet labeled Tablet 1. 4. Once the tablet has disintegrated, add the Tablet 2 to it. 5. After adding Tablet 2, wait five minutes before viewing the sample. 6. Put the tube in the assigned spot for the tube on the octa- slide viewer. 7. Compare the color of the sample to the colors on the viewers. Once you have found what you believe to be the correct match; observe the color to left and right of the correct color. This is to make sure that the color is the right match with the sample. 8. After you have done this, this number on the correct match will tell you the PPM Nitrate- Nitrogen level of the water sample.
 * Procedure:**

When the water settled and we waited 5 minutes, we took the measurements. The color that matched the sample was an extremely light pink. The number on it was one. This means that the water has a measurement of 1 PPM Nitrate- Nitrogen level.
 * Data:**

Our hypothesis was disproven because we believed that it would be a lot higher, but it turned out that the stream sample only was 1 PPM. We had a little bit of uncertainty which was 0.5 PPM Nitrate- nitrogen level.Our prediction was also incorrect because we said that the PPM level would be very high but turned out to be very low. We think that because of the results of the experiment, that the stream should be considered healthy if we were basing it only off of the nitrate test.
 * Conclusion:**


 * Period 6 Group C: Stephanie, Jocelyn, and Alex**

Nitrate #1 Tablet Nitrate #2 CTA Tablet Test Tube Nitrate-Nitrogen Octa-Slide, 0-15 ppm Octa-Slide Viewer
 * Materials:**


 * Hypothesis:** We think that the water will have a high amount of nitrate.


 * Prediction:** If the water has a high amount of nitrate, and the water nitrate level is 8, 10, or 15, then that shows that the water has a high amount of nitrate.

1. Fill test tube 5ml 2. Add one nitrate #1 tablet 3. Cap and mix 4. Add nitrate #2 5. Cap and mix until it disinigrates. 6. Wait 5 minutes. 7. Insert bar and view.
 * Procedure:**


 * Data:** Our test ended up closest to 2 Nitrate-N ppm, but it was kind of inbetween, one and two but it was closer to 2. This is probably happened because of soap or another substance. That was left in the experiment before.


 * Conclusion:** Our hypothesis was disproven because the nitrate level was 2 and we guessed that it would be a lot higher.

**Hypothesis:** We believe that the water will have a higher than normal PPM level because of our belief that the water is unhealthy. The higher the PPM level the unhealthier the water is. (0-1 PPM is healthy and 10 or above is unsafe to drink.)
 * Purpose:** To find the water's PPM level.


 * Prediction:** If part of the river is has an unhealthy PPM level and we use a sample from that section for the Nitrate Test then the water should turn a shade of red. (The darker the red, the higher the PPM level.)

**Conclusion:** Our hypothesis has been proved incorrect because the water had an extremely healthy PPM level of 0. This is one step forward to proving our overall hypothesis incorrect. Another group did the same test though from the same source and got a PPM level of 1, which is still very healthy. That test verified the result. This means that the stream is healthy in the respect of PPM level.
 * Procedure: **
 * 1) Take a sample from the river.
 * 2) Fill a test tube with 5 ml. of water.
 * 3) Put of safety gloves.
 * 4) Add a # 1 nitrate tablet.
 * 5) Cap and mix with a spinning rotation of the wrist.
 * 6) Add a # 2 Nitrate tablet.
 * 7) Cap and mix with a spinning rotation of the wrist.
 * 8) Wait five minutes.
 * 9) Insert into Data Slide Bar.
 * 10) Match sample with slide on the bottom.
 * 11) Record PPM level.
 * 12) Repeat steps 1-11 until satisfied with amount of data.

Period 3 Group B- Adriel, Josh, Julia and Johnny


 * Hypothesis**: We believe that the level of PPM will generally high, because of past experiences we believe the river is unhealthy and will show bad results on this nitrates test.

Prediction: If the very is unhealthy and has nitrates, and we do the nitrates test, then there should be a high nitrates level on the test, being told by the octa-slide viewer.

Procedure: 1) Put protective gloves and goggles to protect your self. 2) Fill a test tube with 5ml of a water sample 3) Add a nitrates#1 tablet 4) Cap and mix in a circular rotation, using your wrist so the tube does not break, until the tablet disintegrates. 5) Add nitrates#2 tablet 6) repeat step 4 7) wait five minutes 8) Insert octa- slide slider into octa- slide viewer 9) Insert tube 10) Compare standard nitrate level to level of your sample. Data: We found that the level of nitrates or PPM level was 1.

Conclusion: Being at level 1 that means that the river doesn't have that much nitrates, one. That necessarily does not means that the river is healthy (or least our part), like we said our tributary, or the small 5ml of it, had one nitrate, and that does not mean that the river is healthy. From other experiments our tests have shown the river is unclean, so this barely states anything.