|Average atomic mass simulation||Chemistry|
background [prelab assignment (10 points) due at the beginning of lab]
this lab is a simulation, where different type of beans represents different isotopes. What is a simulation ?
sketch a data table (i.e. not calculations) for your experimental measurements (i.e. see the purpose & list of materials, design an appropriate experiment, then sketch a data table)
compare the calculation of the average bean mass using different methods:
fulfill various aspects of the NGSS science & engineering standards.
- mass of entire sample ÷ # beans in sample
- Σ ( mass of beani * % beani in sample )
mixture / sample of different beans; balance
methods / data analysis
Content of lab report [25 points]
data analysis (10 points)
data table containing your experimental data
calculation of the average bean mass in the sample using both methods (see purpose)
discussion (15 points)
hypothesis: would both methods (see purpose) provide the same result ? basis / rationale ?
conclusion: support or refute your hypothesis based on your data.
describe / list two (ex1; ex2) NGSS science & engineering practices that correlates to an aspect of this laboratory activity; provide an example in the lab & this lab report that meets these practices