Wondering:
I know that salt eats away at ice, I wonder if any other powder substance can do the same.
Hypothesis:
I think that salt will be the quickest powder to melt the ice, and the sand will melt the ice the slowest.
Materials:
Salt, baking soda, citric acid, sand, sugar, containers, ice, measuring spoons, flat surface, timer,measuring cup, ¼ of a cup.
Variables:
Independent:
Powders,
Dependent:
Salt is coming in last. The baking soda has sped up its process, the sugar is going really fast.
Control:
The amount of ice, amount of powder, same temperature, same size ice cubes,
Procedure:
Pour ½ of water into separate bowls and put it into the freezer overnight.
Pour ¼ of a cup of each powder into a separate bowl/container each.
Pour your powders at the same time into their own container .
Shake the powders and shimmy them all around the ice so it is a faster process.
Start timing the ice straight away when the powders are on the ice.
Results/Observations:
The salt, baking soda, citric acid has sunk into the ice eating it quickly.
Sugar looks like it is melting the ice but the salt looks like it is absorbing the ice.
Sand is coming in last and isn’t really doing anything.
The sugar is melting the ice and not absorbing it but it is melting the ice making the sugar in the lead.
The citric acid looks like it has frozen with the ice.
There are air bubbles and spikes on the citric acid.
The sugar has gotten into the ice and has made a platform.
The sand is absorbing the ice water and it is getting wet.
The salt has made clumps and the access salt has sunk to the bottom.
The citric acid is the coldest.
The salt took 1 hour, 14 minutes and 36 seconds to melt the ice cube and was the fastest.
Conclusion:
The experiment helped my hypothesis and my hypothesis is true. The salt makes a lower power of the ice melting, when the salt is in contact with the ice it interferes with the little bits of the ice cube. The salt then mixes with the water melted off the ice cube and speeds up the process of melting the ice cube. If this were to be in a real life situation let's say that it was a slippery road or stairs on the concrete we could put salt in the ice to melt it.
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