In this experiment the effects of road salt were tested and analyzed. By recreating solutions of road salt at different concentrations, the effects of salt on the growth of pea plants were measured. As shown by the results, it was clear that tap water without salt concentration was the best option. With both plants A and B, it was shown that far too much salt was present even with the less saline solution. Both plants A and B died after too much exposure to salt whereas the control plant prospered and grew. In fact, it was evident after the first application of salt solution that the plants began to wither and with continued application they simply could not manage to grow. Even after the plants treated with salt were watered with tap water, they could not be saved. With this it is clear that salt at the regular concentration of road salt is poisonous to plants, specifically pea plants. Even when the road salt solution was watered down, as it would be when it is used for the purpose of melting down snow, it is still deadly to the plants affected by it. When reproducing this experiment several changes should be made. One change could be applying the salt to full grown plants to more accurately simulate a real life …show more content…
As seen in the experiment, salt has devastating results on plants. So, over multiple applications over years not only would the plants which are already living be slowly poisoned and killed. Furthermore, over years the salt would become deposited in the soil and make it nearly impossible for new plants to be grown. Taking another step forward, with a large amount of salt in the ground many animals and creatures would be unable to survive. Furthermore, even without this leap, without plants growing there would be no producers to help maintain an ecosystem. Therefore, with continued application of road salt during the winter, people would be killing the ecosystem around
I added ½ tablespoon of baking soda to 4 cups of water. I added a small drop of liquid soap to the water and stirred to mix. I used the end of a straw and cut out 20 circles of spinach leaves. I pulled the plunger completely out of the syringe and put the leaf circles into the syringe. Next I pushed the plunger back in. I used the syringe to suck up the baking soda water until the syringe was about ¼ full of liquid. I placed my finger over the end of the syringe and pulled back on the plunger as far as I could without pulling the plunger out. I repeated this step three times. All the leaf circles sunk to the bottom of the liquid. I placed the spinach into a clear glass with about 2 inches of baking soda solution. I blocked out all light. I set the lamp with a compact florescent light bulb. I placed the glass in front of the lamp. I counted the number of circles that floated after each minute for 20 minutes (positive control). I created a negative control by not placing compact florescent light bulb and not placing the glass in front of the lamp. I counted the number of circles that are floating. I repeated the experiment with fresh circles and used regular water plus soap for all steps instead of baking soda and soa...
After measuring the mass of three trials before restarting the experiment, the mass increased about 0.05g. Based on this, we could know that epsom salt could gain water easily from air when it is on the air. This is because the epsom salt is inorganic hydrate. Inorganic hydrate could simply lose water by heat, but also could gain water and try to go back before it was heated if there are no heat. This could change the result of the experiment if the crucibles are cooled for long time because if the epsom salt bound water again, the mass could be
Hypothesis 2: If different de icing techniques are used, then sodium chloride will have a larger negative impact on the growth of Tall Fescue grass because salt dehydrates plants.
The purpose of this experiment was to make a conclusion on why Mr. R’s lawn was turning yellow, and dieing around his drainage pipe. In this experiment there were different lab groups that tested out different chemical products, that would be washed down a drain. There was a wide assortment of products that were tested in this experiment, for example, windex was one of the products being tested. On our experimental days, we would take our product, and add it to the water supply of our grass. My lab group experimented with windex. Our hypothesis was, if windex was added to the daily water supply of grass, then the grass will turn yellow and die because of the chemicals in the windex.
In my hypothesis I previously believed that the lower the lower the pH level the more seeds would germinate, due to the extra hydroxide. But more seeds actually germinated in the pHs closer to neutral. Some problems in the experiment was the towel drying out and the seeds no longer absorbing the pH, rewetting the towels with the solution could prevent this. Some experimenter errors that occurred is the seeds falling out of the towel which resulted in seeds germinating or not germinating. Also, air getting into the bags and drying out the towel faster could have been prevented by making sure the bag was closed. Lastly, the seeds did not get put in the bag exactly like the previous time which could have affected the germination. To improve this lab, measuring out the same amount of solution for each pH could have made it more accurate. To further this experiment we could have had another set of seeds in the same pH solutions but in the sun to see
Two members of the group were instructed to visit the laboratory each day of the experiment to water and measure the plants (Handout 1). The measurements that were preformed were to be precise and accurate by the group by organizing a standardized way to measure the plants. The plants were measured from the level of the soil, which was flat throughout all the cups, to the tip of the apical meristems. The leaves were not considered. The watering of the plants took place nearly everyday, except for the times the lab was closed. Respective of cup label, the appropriate drop of solution was added to the plant, at the very tip of the apical meristems.
With all of the data that I have you can clearly see that as you go out further out from the Great Salt Lake the salt levels decreased due to the different sediments in the samples as you get further along. The Great Salt Lake is one of the saltiest lakes because the lower the lake level, the saltier the lake gets. The Great Salt is getting lower and lower each year which is causing more salt in it because there isn’t enough water for the salt to dissolve. There are strengths and weakness of this experiment. One of the strengths of this experiment is that it is a great environment idea that help with the future of the Great Salt Lake. But a weakness of this experiment is that there could have been more data involved. Maybe time someone could get water samples as well, or they could try multiple locations of the Great Salt Lake rather than just one location like I did. An methodological issue could have been by filtering the samples a different
Rock salt helps melt snow and ice because it lowers the freezing point of water. It's an inexpensive solution that can make a big difference. However, there are some ecological concerns of using an excess amount of salt. In the long run, too much runoff can hurt the environment; in the short term, it damages nearby plants and shrubbery, as well erodes the concrete.
Throughout this class, one thing Bettina taught me has stuck with me the whole time: the personal is political. Throughout every lesson, every essay, I felt this. I love how personal feminism is, every issue speaks to me personally, and I am encouraged to be angry, enraged, emotions so often not allowed to be felt by women. A point Adiche brings up speaking of her American friend who let her resentments simmer in the workplace.
Just what would become of a food's taste if you take out salt in your diet? Many are despising a no salt diet since it rids food of that sumptuous salty taste. Why would one resort to a no salt diet? No salt diet is used to avoid too much sodium retention. A no salt diet or a diet that uses moderate to low quantities of salt is for those with diseases that influence the balance of fluids in one's body. Another reason in going through this salt controlled diet is when decreasing the body fluid will impede the development of a disease. These diseases that require control are severe heart failure, high blood pressure, acute and chronic kidney disease and impaired liver function.
My experiment will be testing the affects aspirin has on plants. I will be watering the experimental group every two weeks with a gallon of water that has two pills dissolved in it. The aspirin should help the plants with their induced systemic resistance. After everytime that I water the plants (I will water both groups with regular water every two days) I will record the growth of the controle group and the experimental group.
My hypothesis was supported because each experiment did what I thought it would. The salt sank when it was inside of the hot and cold water. When salt was placed inside of the hot and cold water, it sank because of it weighing more than the cold and hot water. We can look at it in this way, salt water weighs more than fresh water. The weight of a cubic foot of salt water is 64.1 lbs. On the other hand, a cubic foot of fresh water only weighs 62.4 lbs. The numbers are different because the salt water has a higher density compared to fresh water. When salt is added to water then the molecules in water are different because they are really together and tight around the salt molecules. Adding salt also increases the volume of water by less than
Salt stress can be a major challenge for plants. It limits agriculture all over the world, particularly on irrigated farmlands (Rausch, 1996). For farmers, salt tolerance is important in vegetables because of the cash value of crops (Shannon and Grieve, 1999). As more land becomes salinized by poor irrigation practices, the impact of salinity is becoming more important (Winicov, 1998). This creates the need for salt tolerant plants.
Salt is used to keep snow and ice from bonding to the pavement and to
= == In my investigation to find out how salt solution concentration affect the mass of potatoes, I will investigate how much the mass of a potato changes if I leave it in a beaker of water with a specified salt concentration for half an hour. I will change the salt concentration after each experiment. Background Knowledge --------------------