Which type of salt can melt ice the fastest?

For my project I will find out which type of salt (rock salt, table salt, and sea salt) will melt the ice the fastest. For the control I have one ice cube with no salt. I will also keep the ice under an ice pack so the salt can do the melting not the heat.

Question: Which salt will melt ice the fastest?

Hypothesis: I believe the rock salt will melt it the fastest. I think this because it get cars out of ice extremely fast so why not regular ice blocks.

Procedure: I will have three big ice cubes I will just regularly put in an ice tray, then I will get regular kitchen salt for cube number 1, no salt for cube number 2 to compare the salt ones, and salt that you put on the street salt. I will get measuring tape to measure before and after how big it is and how much it melted. I will keep the ice cold so it does not melt from heat but I won’t put it in a freezer I put them on ice packs so they can melt from salt and not heat. I will repeat 3 time to make it a fair test. The ice cubes with be three dimensional and I will measure the height only with regular measuring tape.

Salt types:

Table salt and Rock salt for your driveway and/or street.

Materials:

Ice, Salt, and ice packs.

Salt Melts Ice

When I was younger I was going to put an ice cube in my drink when suddenly I noticed it didn’t go in. My dad gave me sea salt to melt it and in spite of this I thought it would be a good idea to see which type of salt will melt it the FASTEST! I wanted to experiment which salt melts ice the fastest because I heard it was a good project and it did well in the fair so that’s why I chose to do this project.

I decided to use three salts table salt, rock salt, and Kosher salt. For my procedure I had three big ice cubes I just regularly put in an ice tray, then I got regular kitchen salt for cube number one, no salt for cube number two to compare the salt ones, and salt that you would usually put on the street when there's ice on the ground salt a.k.a rock salt. I got measuring tape to measure before and after how big it is and how much it melted. I kept the ice cold so it does not melt from heat but I won’t put it in a freezer I put them in a fridge so they can melt from salt and not heat. I repeated this experiment three times to make it a fair test. The ice cubes with be three dimensional and I measured the height only. I measured it every half hour at a time to see how much melted then I wrote it all down. Then I calculated how much it melted and compare the salts that melt them the fastest and I found the average of how much melted then made a graph of the experiment.

My prediction was correct, I predicted that the rock salt will melt the ice the fastest and it did. The whole ice cube melted will the rock salt in a matter of an hour and a half.

Hypothesis

I think that rock salt will melt it the most because it is the most effective when you have to melt ice ice outside like in the street or around a car. I think table salt will be the least effective because it is small and not as rock like.