Forensic Glass Vocabulary

The atoms that make up the solid are not arranged in a regular arrangement. Disorder is present.

• Amorphous solid

• Density

• Refractive index

• Crystalline solid

The ratio of the speed of light in a vacuum to its speed of light in any medium.

• Refractive Index

• Amorphous Solid

• Crystalline Solid

• Density

A physical property of matter. It is equal to the mass divided by the volume.

• Density

• Refractive Index

• Amorphous Sold

• Crystalline Solid

A solid in which the atoms are arranged in a specific order.

• Crystalline Solid

• Amorphous Solid

• Refractive Index

• Density

When a crystalline solid refracts a light beam in 2 different light-ray components.

• Double Refraction

• Birefringence

• Tempered Glass

• Laminated Glass

A difference in the 2 indices of refraction exhibited by most crystalline materials.

• Birefringence

• Double Refraction

• Tempered Class

• Laminated Glass

Glass to which strength is added by introducing stress through rapid heating and cooling of the glass surfaces.

• Tempered Glass

• Laminated Glass

• Double Refraction

• Birefringence

Tags

NGSS.HS-PS3-4

Two sheets of ordinary glass bonded together with plastic film.

• Laminated Glass

• Tempered Glass

• Birefrigerence

• Double Refraction

Tags

NGSS.HS-ETS1-3

NGSS.HS-PS2-6

Heat resistant glass.

• Pyrex

• Floatation

• Becke Line

• Match Point

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

A method for determining the density of glass in which a standard/reference sample of glass is suspended in a medium and compared to other unknown samples to determine their denisty.

• Floatation

• Becke Line

• Match Point

• Grim 3