*ch. 1.  density  (estimate ~ 2 week;  9 points)

1.1.  what is density ?   [1 point]

1.2. describe a graphical method to estimate the density.  [1 point]

1.3.  what is a conversion factor ?  [1 point]

1.4.  relate density & conversion factor   [1 point]

1.5 integrate preceding concepts    [3 points]

1.6  basis / rationale of your observations in the "wave toy" activity (i.e. relative position of the pegniun and two layers of liquid. see ngss chem textbook; ch. 1, engage, part A) using the concept of "bouyant force".   [1 point]

1.7  application(s) of using the concept(s) in this chapter   [1 point]

1.8  do lab activity