Determining Physical Constants from Physical Measurements

• Determination of Avogadro's Number using Graphite

• Determining the Value of the Universal Gas Constant

Structure of Materials

• Interactive 3-Dimensional View of Graphite Crystal Lattice

• Interactive 3-Dimensional View of Diamond Crystal Lattice

• Interactive 3-Dimensional View of Buckminsterfullerene Molecule

• Interpreting the Scanning Tunneling Microscope Image of Graphite

• Measuring the Layer Repeat Distance of Graphite using a Transmission Electron Microscopy Image

• Crystal Planes for Cubic Unit Cell

• Atoms on Crystalline Planes of Primitive-Cubic Unit Cell along the <100> Axis

• Atoms on Crystalline Planes of Primitive-Cubic Unit Cell along the <110> Axis

• Atoms on Crystalline Planes of Primitive-Cubic Unit Cell along the <111> Axis

• Atoms on Crystalline Planes of Body-Centered-Cubic Unit Cell along the <100> Axis

• Atoms on Crystalline Planes of Body-Centered-Cubic Unit Cell along the <110> Axis

• Atoms on Crystalline Planes of Body-Centered-Cubic Unit Cell along the <111> Axis

• Atoms on Crystalline Planes of Face-Centered-Cubic Unit Cell along the <100> Axis

• Atoms on Crystalline Planes of Face-Centered-Cubic Unit Cell along the <110> Axis

• Atoms on Crystalline Planes of Face-Centered-Cubic Unit Cell along the <111> Axis

• Crystal Planes for Hexagonal Unit Cell

Density of Materials

• Calculation of Density for Diamond, Graphite, and Buckminsterfullerene using X-Ray Data

• Determining the Mass Density of a Piece of Graphite

• Measuring of Density using Archimede's Principle (Displacement technique)

Optical Properties

• Exploring the Diffraction of Visible Light

• Index of Refraction for Diamond and other Substances (Snell's and Fresnel's Law)

• Absorption of Light (Beer's Law)

Mechanical Properties

• Elasticity Testing, Spring Constant, and Resonant Frequency of a Cantilever

• Brinell Hardness Test Calculator

• Knoop Hardness Test Calculator

• Vicker Hardness Test Calculator

• Stress Vs Strain Diagram for a Tensile Substance

• Stress Vs Strain Diagram for a Brittle Substance

Electrical and Magnetic Properties

• Electrical Resistance Calculator

Thermal Properties

• Determining the Specific Heat of a Substance

Phases of Materials

• Phase Diagram for a Pure Substance

• Interactive Thermometer

• Calculator for Vapor Pressure over Liquid

• Calculator for Vapor Pressure over Solid

• Graphical Trend of Vapor Pressure over Liquid.

• Graphical Trend of Vapor Pressure over Solid.