I- Scientific Method: Logical method used by scientist to solve a problem. A- Steps of Scientific Method: 1- Make an observation 2- Identify the problem.

•Density is measured in g/cm3

•WaterWater = 1.0g/cm3 •The density of a substance is alwaysalways the same. (at a given pressure and temperature regardless of the size of the sample of the substance).

D-D-Density Density = amount of mass in a given volume.

WhereWhere

d  =  density

m  =  mass 

v  =  volume 

•We can calculate density using the formula:

Density= Mass/VolumeDensity= Mass/Volume or

WhereWhere

d  =  Dumb

m  =  Mr 

v  =  V 

Block I Mass = 79.4 grams Volume=29.8 cubic cm.

Block II:Mass= 25.4 grams Volume=29.8 cubic cm.

       Solve for density

        Solve for mass

       Solve for volume