DENSITY. Density = amount of matter per unit volume. D = m/v (g/cm 3 ) Mass usually expressed in grams Volume usually expressed in cm 3 or ml etc. M ÷ ÷ D X V. Mass =. Density =. Volume =. M V. M D. The “DMV” Triangle for Volume, Mass, and Density. D x V.
D = m/v (g/cm3)
More than “heaviness” - density includes how much space an object takes up!!
All substances have density including liquids, solids, and gasesDensity is the measure of the “compactness” of a material
High pressure systems indicate a colder more dense air mass that will……. SINK!!!
Denser layers to less dense layers…..
Ice vs. water…..
Wouldn’t you like to have a bunch of THIS dense material?
EX: cubes, cylinders, spheres, cones, etc.
Use a graduated cylinder
Add water to a predetermined level - record.
Gently drop in the irregularly shaped object.
Read the graduated cylinder – record.
Subtract the first water level from the second – this is the volume
SINK or FLOAT
In Water (D = 1.0 g/mL)