Fill graduated cylinders to 100 ml of dH2O Weigh 10 g of Sodium Nitrate Add the 100 ml of dH2O into flask Add 10 g of Sodium Nitrate to flask Mix well Put in storage container and label concentration Repeat procedure with varying weights of Sodium Nitrate depending on wanted concentration Percent solution= (dry mass in grams/ volume in mL) *100
Solution Number (x) Day of Death for Daphnia (y) 100 parts/million12 1000 parts/million6 10000 parts/million4 100000 parts/million2 Parts per million (y) Number of Days to death of sample population (x)
Over the course of this experiment, we did indeed test the Daphnia. However, we do not believe that the data that we collected is exclusive enough to answer the question that was posed. We only tested a few sets of Daphnia. We were not able to test them in increments of minutes, but days. The Daphnia took a substantially long amount of time to produce evidence, or change.
Slants containing bacteria. Test tubes containing broth. Heat source. Incubator. Plastic rods. Petri Dishes. Small paper discs.
We have concluded that, as per our original research question about the efficiency of using Vibrio Fischeri for nitrogen testing, Vibrio Fischeri is not an expeditious tester. We found the following issues: Growth time Obscure effects Saltwater vs. Freshwater Fragile