Initial 1 cm
1.3 cm
211 cm
2.70 g
2.73 cm3 0.989 g/cm3
After 8 hours
2.5 cm
212 cm
4.5 cm
11.90 g
24.75 cm3 0.481 g/cm3
Difference
-1.5 cm
0.9 cm
2.4 cm
9.29
-22.02 cm3 0.508 g/cm3
Exercise 4 Post-Lab Questions
1. What type of property of matter is density? Does it depend on the amount of matter
present?
2. Compare the initial and final density of the gummy bear. Was the change in density
influenced more by a change in mass or a change in volume?
3. How would you expect the density of the gummy bear to change if you soaked it in
isopropanol (rubbing alcohol, density = 0.79 g/cm) instead of water?
4. How would you expect the density of the gummy bear to change if it were only soaked
for 4 hours? Explain your reasoning based on your observations after 8 hours.
Ok