Kristen's year 10 SRP blog

The vinegar ice cube was the second one to melt with a time of 43 minutes and 39 seconds. The vinegar stayed the same throughout the whole experiment in terms of colour and formula. It continued to have a whitish clear colour and a thick liquid consistency throughout the melting process.  Before melting period  After melting period

The next ice cube to be tested is the one with sugar. To my surprise sugar was the last ice cube to melt with a time of 49 minutes and 32 seconds. I did further research on why the sugar took the longest to melt and found out that when sugar is added the molecules dissolve into the water therefore there are less water molecules because the sugar replaces it. Similar to the salt the sugar formed into a paste with a dull white colour. Unlike the salt the sugar continued to stay in a sort of paste form however it was not far away from becoming completely liquid. Sugar first making contact with ice cube                                        Sugar and ice cube completely melted               

The first ice cube was coated with salt. From further background research I found out that salt makes ice cooler. Although this may be the case, this ice cube was the first to melt with a time of 32minutes and 17 seconds. The salt quickly turned into a pasty type formulary once it made contact with the ice cube. By the end of the experiment the salt was completely liquid as it absorbed all the water out of the ice cube.  Salt first put on to ice cube Completely melted    

    Conducted ice experiment today. Placed three plastic cups next to each other and put one ice cube of the same size in each cup. Then put a table spoon of each substance on the ice cube and timed the time it took for each ice cube to melt. Salt Sugar Vinegar

Looked through report to make sure that everything is correct before conducting experiment. This will ensure that all results are equal and that variables are correct. The variables are a very important part to the experiment as it will determine the fairness in the results. e.g. one of the variables are one table spoon of all substances. This will be useful because it will guarantee that all three ice cubes have the same amount of material (salt, vinegar and sugar) on top.

Worked on method to ensure that experiment is conducted in the correct order as well as in a safe logical way to gain reliable results that will solve the problem needed to be solved.