Density Experiment

Density is how compact particles are inside an object. Objects can be different sizes but have the same density because the density depends on how close particles are together, not the size of an object. The density of water is 1 g/㎤. Any object with a density less than that will float. Any object with density more than that will sink. Carbon dioxide, or CO2, also played a big role in this experiment. Many soft drinks contain CO2. Studies show that Sierra Mist had the most carbonation out of most soft drinks. There was a lot of carbon dioxide in the soda. That was the reason the raisins would float up and down.
There were many purposes to this experiment. One purpose was to teach us about density when we saw how the raisins floated to
They should get a bottle of MistTwist®, a 100 mL graduated cylinder, raisins and a stopwatch.
Each student needs to be assigned a job. The jobs included- timekeeper, volume keeper, dance counter, dance counter assistant, pourer/ dropper and recorder of information.
Count out ten raisins to drop in the graduated cylinder.
Fill graduated cylinder with MistTwist® up to the 100 mL line, at a 45 degree angle tilt.
Set stopwatch to count down for one minute- If a raisin is in mid-jump while the stopwatch ends, it doesn’t count.
Drop raisins into the graduated cylinder. Start stopwatch when all of the raisins are in the graduated cylinder.
The dance counters should count how many jumps the raisins make. A jump is when the raisins goes all the way down then all the way back up.
After the minute, the data recorder should fill in the chart with the amount of jumps.
Students should make observations on the trial that was just run.
The students should rinse the graduated cylinder three times and then repeat the experiment.
We ran eight trials, four on currants and four on craisins. These were our results:
Type of Raisin
Trial 1
Trial
The first thing that needed further study was the golden raisins. On our first trial, the golden raisins sunk to the bottom and didn’t make any jumps. We found out that the goldens were treated with sulfur to help them maintain their color. We need to look into this to see if the sulfur was the reason that the raisins didn’t make any jumps. Another thing that needed further study was the change from Sierra Mist to Mist Twist. When the company changed the name, the added high fructose corn syrup to the ingredients. We need to study this because the might have lowered to amount of carbonation in Sierra Mist. These were some things that needed further