6:59 Density: Basic Concepts
(1) How density is a measure of its mass divided by its volume.
(2) Determining density by measuring volume using a ruler or by water displacement
12:07 Density: Word Problems
(1) Using the density formula (D=m/v)
(2) Using the volume formula (V=l*m*h)
(3) Using the idea of density to solve a puzzle
