American Institute of Physics
Google - Research database allows searching of the scholarly literature.
Fordham Prep – Lesson describing the concept of density and measurements used to calculate density.
G. Speer – A brief description of density and specific gravity.
USA Today – A detailed explanation of changes in air density and their effects.
An alphabetical glossary of relevant scientific terms.
SparTech - Hands-on lab exercise illustrates density and buoyancy concepts.
How Stuff Works – Descriptive animation explains how a submarine changes buoyancy.
National Taiwan Normal U. - Java Applet shows how buoyancy changes with density.
American Institute of Physics - Online calculator converts between different units of density.