Readily Compressible
Free-flowing? No
Spaced Far Apart Particles
Medium Density
Almost incompressible (also)
High Density
Indefinite Shape
Free-flowing? Yes (also)
Low Density
Almost incompressible
Definite Volume
Free-flowing? Yes
Definite Shape
Indefinite Volume
Close, But Not Tight Particles
Indefinite Shape (also)
Definite Volume (also)
Tightly Packed Particles
