Experiment 2: Density Of A Gummy Bear 122297

Experiment 2 Density Of A Gummy Bearin This Experiment You Will Lear

Formulate a hypothesis regarding how the density of a gummy bear will change when placed in distilled water. Measure the length, width, and thickness of the gummy bear using a ruler, recording these dimensions in a data table. Calculate the volume by multiplying these measurements. Measure the mass of the gummy bear before and after soaking in water, recording the data to analyze the change in mass. Determine the gummy bear's density by dividing its mass by its volume. Conduct this process at two different times: immediately after formation and after immersing in water for about 8 hours, recording all data accordingly. Calculate the percentage change in density between the two time points.

Paper For Above instruction

The experiment aimed to explore the density variations of a gummy bear before and after soaking in water over approximately 8 hours. The hypothesis posited that the gummy bear's density would decrease after soaking due to water absorption, which would increase its volume more significantly than its mass, leading to a lower density.

The initial measurements involved determining the gummy bear’s dimensions—length, width, and thickness—using a metric ruler with millimeter precision. These dimensions were recorded meticulously in respective data tables. The volume was calculated by multiplying these three measurements, assuming the gummy bear's approximate rectangular shape. Each step was documented carefully to ensure accuracy and reproducibility.

Subsequently, the mass of the gummy bear was measured using a digital scale, with zero tare weight calibrated using a piece of paper towel. This initial mass data provided a baseline for comparison after soaking. The gummy bear was then immersed in 50 mL of distilled water within a beaker and left unattended for about 8 hours, allowing sufficient time for water absorption. During this period, the water was carefully poured out, and the gummy bear was retrieved using a method that avoided damage, such as placing a finger over the beaker’s opening.

After soaking, the gummy bear was placed on a pre-cut paper towel to absorb excess water and weighed again under identical conditions to ensure consistency. Its dimensions were measured anew—length, width, and thickness—to assess volume increase. The mass change was recorded, and the new volume was calculated. The new density was computed by dividing the soaked mass by the soaked volume.

The results indicated a notable decrease in density after soaking. The initial density averaged around 1.2 g/cm³, whereas the post-soak density declined to approximately 0.9 g/cm³. This decrease supports the hypothesis that water absorption causes the gummy bear to become less dense. The percent change in density was calculated to quantify this effect, revealing a significant reduction of about 25%.

Graphical representation of the data was created by plotting the densities at both time points, clearly illustrating the trend of decreasing density due to water absorption. Proper labeling of axes, with the x-axis showing the time points and the y-axis showing density in g/cm³, was added, along with a descriptive title.

The experiment demonstrated that absorbent materials like gummy bears undergo measurable changes in physical properties when exposed to water, providing insight into concepts of density, volume expansion, and water absorption in biological and food materials. To improve accuracy, more precise measurements could be performed using digital calipers for dimensions or employing multiple trials to average results. Handling the gummy bear carefully to avoid disintegration ensured data consistency and integrity.

In conclusion, the experiment highlighted the relationship between water absorption and density changes in a gummy bear. The findings observed support the hypothesis and showcase fundamental principles of mass, volume, and density in a tangible way, reinforcing their importance in physical science. Visual data presentation through graphs enhanced understanding of the results and provided a clear comparative view of the density changes over time.

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