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The Four States
  
Trash Recycling with Disposal Containersby epSos.de on Flickr

Solids; 

- Solids have a definite shape and volume. They can only change shape when cut or broken with force.

- The molecules are tightly packed together, vibrating about a fixed position. 

- When a solid turns directly into a liquid the phase change is called melting. When it turns into a gas, it is called sublimation. When a liquid becomes a solid, it is called freezing. When a gas directly becomes a solid, it is called deposition.

- Solids come in many forms; ice, wood, etc., anything that you can not physically push yourself through.
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Blue Dropby Koshyk on Flickr

Liquids;

- The arrangement of molecules in a liquid is some what strong, but they are still able to pass each other.

- A liquid will change its shape to fit any container it is in, similar to what a gas does.

- All liquids have a definite volume.

- When a liquid becomes a solid it is called freezing, when it becomes a gas it is called evaporation, when a gas becomes a liquid it is called condensation, and when a solid becomes a liquid it is called melting.
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Environmental Disasterby Alex E. Proimos on Flickr

Gases;

- Gases have the lowest density of all the states of matter.

- No definite shape, or volume.

- Molecules are barely attracted to each other, they can move all around, and they move to fill any container put in.

- When a gas changes into a liquid it is called condensation, when a liquid turns into a gas it is called evaporation, when gas turns into a solid it is called deposition, and when a solid turns into a gas it is called sublimation.
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Plasma-lampby luc.viatour on Flickr

Plasma;

- Plasma is the most common form of visible matter in the universe.

- It does not have a definite shape or volume.

- It is mainly observed on a daily basis  without you knowing it.

- When a gas changes into plasma, it is called ionization, and when plasma turns into a gas it is called deionization.

- Converting a gas into a plasma usually happens in one of two ways; either from a huge voltage difference between two points, or by exposing it to extremely high temperatures.
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