Salt+and+Ice

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Title
Salt and Ice

Broad Question
What is the best way to melt ice? **Specific Question** What type of salt melts ice?

Hypothesis
I hypothesize that the finer salt will melt the ice best.

Independent Variable:
Salt

Dependent Variable:
amount of ice

**Variables That Need To Be Controlled:** time for ice to melt

General Plan
I'm going to make two trays of ice. I will label one tray " Tray 1: fine salt" and the other " Tray 2: thick salt".

Potential Problems And Solutions
-The tray for the ice could break: I can put the tray in a safe place and not to high off the ground

Safety Or Environmental Concerns
Ice burn

Number Of Comparison Categories:
I will be comparing two different kinds of salt

Number of Comparison Samples:
2 samples

Number Of Observation In Each Sample:
I will measure the amount of salt

When data will be collected
During the experiment

Where will data be collected?:
Home

Resources and Budget Table

 * Item || Number needed || Where I will get this || Cost ||
 * "tray" || 2 || home ||  ||
 * water ||  || home ||   ||
 * salt: fine ||  || home ||   ||
 * sharpie || 1 || Home ||  ||
 * salt: regular ||  || home ||   ||
 * salt: thick ||  || home ||   ||

Detailed Procedure
- Set up the trays and label them correctly - Pour water in at an even level in each tray - Place trays flat in freezer - Take out trays from freezer after they are frozen completely - Pour salt in an even layer in each tray - After pouring salt, start timer for 35 minutes - After time, see which one melted more - Start next trial and repeat steps 1-7

Photo List
- Tray of water - Ice - Cups of salt Experiment set up

Time Line
February 1st- procedure, timeline and photo list complete February 4th- Begin experiment March 1st- Experiments done March 7th- Analysis March 15th- Discussion/Background March 15th- Wiki complete March 22nd- Posters complete March 29th- KMS tour

Data Table

 * || Fine salt || Sea Salt || Thick Salt ||
 * *FIRST TRIAL* ||  ||   ||   ||
 * 10 minutes- || No signs of melting, Still in cude form || Slight melting . Puddle Forming || 1/4 melted ||
 * 20 minutes- || Ice cube started to melt, small puddle forming || 1/4 of the cube melted || fully melted ||
 * 30 minutes- || 1/4 of the cube melted || 1/2 melted || 3/4 melted ||
 * *SECOND TRIAL* ||  ||   ||   ||
 * 10 minutes- || 1/4 melted || 3/4 melted || 3/4 melted ||
 * 20 minutes- || 1/4 melted || completely melted || completely melted ||
 * 30 minutes- || 1/4 melted || completely melted || completely melted ||

Graphs




Results
At the end of the experiment, The thick salt worked the best and the fastest. The thick salt worked a lot better then the fine salt.

Conclusion
I hypothesized that the finer salt would melt the ice the best and the fastest. I reject my hypothesis. The fine salt melted the ice the slowest. The thinck salt melted it the quickest.

Discussion
I found that the thick the salt was, the faster the ice would melt. I was able to answer the experiment question. The data I had did not contain any errors. In a way it could be better, I could've used different salt and different ice.

Benefit to Community and/or Science
There is a benefit, It shows the best way to melt ice in the winter.

Abstract
The experiment I chose was salt and ice. I chose this because I was really interested in finding easy and fast ways to melt ice. What I did was I put water into ice trays and froze them for about an hour and a half. I sectioned the ice trays into three sections: fine salt, regular salt and thick salt. I then took a spoonful of each different salt and poured the salt evenly over the ice. I checked every time minutes on the progress and after thirty minutes I checked the ice to see which melted the most. Result being the thick salt.