1: Why can changes in volume be used to estimate changes in density?
2: Where might errors creep into your observations?
3: Why don't all liquids display a temperature versus density relationship similar to that of water?
4: If a single molecule does not have a temperature, what does temperature measure?
5: Why is ice less dense than water?
6: What would happen to our apparatus if the water in it froze?
Understanding Diffusion
1: Is the relationship between time and average distance traveled linear?
2: Is the relationship between time to travel a set distance and temperature linear?
3: Would changing the distance travelled change your answer?
4: In your experiments why did you not get exactly the same value for each measurement? What was the source of the variation?
5: Does the presence of variation mean that the system cannot be described mathematically?
6: How would decreasing the number of diffusing particular from 30 (as it is) to 5 alter your measurements?
7: How would increasing the number of diffusing particle from 30 to 1000 alter your measurements?
8. Einstein hypothesized that invisible particles were responsible for Brownian motion - was this scientific, postulating invisible particles?