First in your blog write a summary of the experiment and your results.
Then: Answer these questions
1. Some methods for finding the diameters and thickness are much better than others. Explain the limitations of using water displacement and a ruler to calculate the thickness.
2. When calculating the actual thickness of the foil the number calculated will likely contain a large number of decimals. Can we be confident that this represents an exact measurement? Explain why or why not this is the case.
3. Suggest some sources of error in how you conducted the measurements that might explain any error in your diameter value.
To conclude your blog entry, explain how you could use a method like the one in your experiment to solve another problem that might not have a clear cut answer.
ENRICHMENT:
As a person who will soon be paying your way through life, learning to evaluate the “best deal” is an important skill so you can get the most value for your money. Obtain information about the price and amount of foil in roll of each type of aluminum foil. Use this information, along with the thickness value for each type of foil, in order to determine which type of foil gives more value. You may choose to do this by:
a) showing a mathematical way of figuring this out, OR
b) describing in writing how you would figure this out.
Prices: HD: $3.79 for a roll 70 cm X 6 m
Regular: $5.79 for a roll 40 cm X 15 m
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