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States of Matter Project

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Amorphous Solid

 
A solid in which particles are not arranged in a regular, repeating pattern that often is formed when molten material cools too quickly to form crystals.
 
These lava rocks are a form of amorphous solid because the lava cooled too quickly to allow crystals to form.
 
 
 
Sublimation
 
The energy-requiring process by which a solid changes directly to a gas without first becoming a liquid.
 
When you apply water to dry ice it turns into a gas without first becoming a liquid.
 
 
Melting Point
 
For a crystalline solid, the temperature at which the forces holding a crystal lattice together are broken and it becomes a liquid. 
 
As the temperature rises, ice begins to melt becoming a liquid.

 
 
 
 
Freezing Point
 
The temperature at which a liquid is converted into a crystalline solid.
 
As water reaches the freezing point, it becomes a solid in the form of ice.

 
 
Unit Cell
 
The smallest arrangement of connected points that can be repeated in three directions to form a crystal lattice.
 
The unit cell is the regular repeating pattern of particles (ions, atoms, and molecules) that spreads throughout the crystal lattice
 
 

 
 
Condensation
 
The energy releasing process by which a gas or vapor becomes a liquid.

Condensation on glass occurs when vapor molecules come in contact with a cold surface.

Deposition
 
The energy-releasing process by which a substance changes from a gas or vapor to a solid without first becoming a liquid.
 
Frost on the leaves forms when water vapor changes into ice crystals.

lava.jpg
Amorphous Solids

dryice2.jpg
Sublimation

icemelt.jpg
Melting Point

icebucket.jpg
Freezing Point

unitcell2.jpg
Unit Cell

condensation.jpg
Condensation

frost3a.jpg
Deposition

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Shaun McPeters