Lab 2E

Lab we did on Wednesday was about Density.  The purpose of this lab was to calculate the thickness of a sheet of aluminum foil and express the answer in terms of proper scientific notation and significant figures

The procedure of this lab:

1. Get 3 rectangular pieces of aluminum oil and label 1, 2, and 3
2. Measure the length and width (using scientific notation)
3. find the mass with centigram balance
4. compare and discuss the result 

To get the thickness of the aluminum foil, we needed two formula

1. density = mass/ volume
2. volume = width * length* height

 So, how do we know whether our result is accurate?......Well, we can calculate the Experimental Error

Experimental Error = |actual-experimental| /actual x 100%
the smaller experimental error percentage we get, the more accurate the result is