How does salinity of water affect boiling time?
Abstract:
Bibliography/Citations:
Bibliography (MLA):
Geggel, Laura. “Does Salt Make Water Boil Faster?” LiveScience, Purch, 22 Sept. 2016, https://www.livescience.com/56214-does-salt-make-water-boil-faster.html.
Wpdev. “Does Salt Water Boil Faster?” AstroCamp, 22 Feb. 2023, https://astrocamp.org/blog/salt-water/.
“Chemistry of Life | AP®︎/College Biology | Science.” Khan Academy, Khan Academy, https://www.khanacademy.org/science/ap-biology/chemistry-of-life.
“Exploring Our Fluid Earth.” Density, Temperature, and Salinity | Manoa.hawaii.edu/ExploringOurFluidEarth, https://manoa.hawaii.edu/exploringourfluidearth/physical/density-effects/density-temperature-and-salinity.
Kruszelnicki, Karl S. “Salt in the Water.” ABC (Australian Broadcasting Corporation), 11 Apr. 2007, https://www.abc.net.au/science/articles/2007/04/12/1894612.htm.
US Department of Commerce, NOAA. “Sea Water.” NWS JetStream, NOAA's National Weather Service, 12 Aug. 2019, https://www.weather.gov/jetstream/seawater#:~:text=Sea%20water%20salinity%20is%20expressed,33%E2%80%B0%20%2D%2037%E2%80%B0).
Additional Project Information
Research Plan:
Question or Problem being addressed: How does the amount of salt affect the boiling time of water?
Rationale: I want to investigate this because I’ve noticed that when people boil the water they just boil it in a pot, they don’t put anything into it. I know salt makes ice melt faster so I want to investigate if salt will make water boil faster since ice is just frozen water. I think that if salt made a great difference in the reduction of the boiling time of water, people might start to put salt in their water to boil it. This would help people improve the flavor of food cooked in the saltwater so they wouldn’t have to salt it or flavor it after.
Goals/Expected Outcomes/Hypotheses: I predict that the amount of salt will not affect how fast the water boils. I don’t think salt will make a noticeable difference in the time it takes to boil, at most a minute less to boil. My hypothesis is testable because I can easily acquire and change the amount of salt that I put into water. For water to boil, its vapor pressure has to equal the pressure of the atmosphere. This is why water boils at a lower temperature on top of Mount Everest than it does at sea level. When salt is added, it makes it harder for the water molecules to escape from the pot and enter the gas phase, which happens when water boils and should reduce boiling time.
Description in detail of method or procedures: (During this whole experiment I will take lots of pictures for evidence). First I will get out a stainless steel 8-quart pot. Then I will measure out 2 quarts of water in a measuring cup (8 cups). Then I will pour the water into the pot and make sure not to spill any. Then I will leave the water out for 10 minutes just to make sure the water temp is all the same. Next, I will pour in 50 grams of Morton iodized salt which will be measured with tablespoons (1tbs = 15g). I will put the stove on high and start the stopwatch. When I see bubbles rising to the surface, I know that it is boiling so I will stop the timer and record my results. I will do this 5 times, each time doubling the amount of salt I put in the water. This will equal 750 grams of salt needed in total
Equipment:
- Measuring cups - 1
- 8-quart pot - 1
- Stove with burners - 1
- Notebook and pencil - 1 (of each)
- Working Stopwatch - 1
- Camera - 1
- Salt - 750g
- Tablespoon - 1
I will keep myself and others safe by watching the stove the whole time it is on
Procedure:
- (During this whole experiment I will take lots of pictures for evidence)
- First I will get out a stainless steel 8-quart pot
- Then I will measure out 2 quarts of water in a measuring cup (8 cups)
- Then I will pour the water into the pot and make sure not to spill any
- Next, I will pour in 50 grams of Morton iodized salt which will be measured with a tablespoon (1tbs = 15g) into the water
- I will put the stove on high and start the stopwatch
- When I see bubbles rising to the surface, I know that it is boiling so I will stop the timer and record my results
- I will repeat steps 3 - 7, 5 times, each time doubling the amount of salt I put in the water. 50, 100, 150, 200, 250. This will equal 750 grams of salt that is required for the experiment.
If the time the water takes to boil decreases as I add more salt, I will conclude that salt makes water boil faster. I will test this with my stopwatch and record my observations with a pencil in my notebook.
Bibliography (MLA):
Geggel, Laura. “Does Salt Make Water Boil Faster?” LiveScience, Purch, 22 Sept. 2016, https://www.livescience.com/56214-does-salt-make-water-boil-faster.html.
Wpdev. “Does Salt Water Boil Faster?” AstroCamp, 22 Feb. 2023, https://astrocamp.org/blog/salt-water/.
“Chemistry of Life | AP®︎/College Biology | Science.” Khan Academy, Khan Academy, https://www.khanacademy.org/science/ap-biology/chemistry-of-life.
“Exploring Our Fluid Earth.” Density, Temperature, and Salinity | Manoa.hawaii.edu/ExploringOurFluidEarth, https://manoa.hawaii.edu/exploringourfluidearth/physical/density-effects/density-temperature-and-salinity.
Kruszelnicki, Karl S. “Salt in the Water.” ABC (Australian Broadcasting Corporation), 11 Apr. 2007, https://www.abc.net.au/science/articles/2007/04/12/1894612.htm.
US Department of Commerce, NOAA. “Sea Water.” NWS JetStream, NOAA's National Weather Service, 12 Aug. 2019, https://www.weather.gov/jetstream/seawater#:~:text=Sea%20water%20salinity%20is%20expressed,33%E2%80%B0%20%2D%2037%E2%80%B0).
Questions and Answers
1. What was the major objective of your project and what was your plan to achieve it?
The major objective of my project was to find a simple problem and come up with a solution to solve it.
a. Was that goal the result of any specific situation, experience, or problem you encountered?
I had no problems with my experiment that I encountered. I did run out of salt because the box of salt that I had bought had less salt in it then it said. I had to go to the store to get more.
b. Were you trying to solve a problem, answer a question, or test a hypothesis?
I was trying to solve a problem
2. What were the major tasks you had to perform in order to complete your project?
There were no major tasks except for researching the topic, there wasn't too much information on it.
a. For teams, describe what each member worked on.
3. What is new or novel about your project?
a. Is there some aspect of your project's objective, or how you achieved it that you haven't done before?
I have never tested this before or even thought of it before I did last year's science fair.
b. Is your project's objective, or the way you implemented it, different from anything you have seen?
I haven't seen an experiment where anyone has used my method, but my objective is the same as some other people who have done a different experiment on the same topic.
c. If you believe your work to be unique in some way, what research have you done to confirm that it is?
I believe that the method that I used to answer my question was unique because I looked at a lot of websites and resources and I didn't see a single experiment that was like mine.
4. What was the most challenging part of completing your project?
Researching the topic, there wasn't too much information on it.
a. What problems did you encounter, and how did you overcome them?
I didn't encounter any problems except for the problem with the salt that I listed above.
b. What did you learn from overcoming these problems?
I learned to always get extra of something if you are trying to complete a task that lists a very specific amount.
5. If you were going to do this project again, are there any things you would you do differently the next time?
I would buy more salt and be more thorough with my analysis
6. Did working on this project give you any ideas for other projects?
It gave me the idea of testing how a lid on a pot affects how fast water boils.
7. How did COVID-19 affect the completion of your project?
COVID-19 had no effect on my project