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States of Matter and Phase Changes
Terms in this set (23)
States of matter
The physical forms of matter, which include solid, liquid, and gas
A characteristic of a pure substance that can be observed without changing it into another substance
A state of matter with a definite volume and definite shape. Molecules are low energy and are close together in a regular pattern, and vibrate around fixed positions.
A state of matter with a definite volume, but no definite shape. Molecules have medium energy and are able to slide past each other.
A state of matter where the particles have no fixed shape or volume. They will fill the entirety of the space they're in.
Change from a gas directly to a solid
Solid carbon dioxide
Examples of deposition in nature
frost forming on the ground and cirrus clouds forming high in the atmosphere
Change from a solid directly to a gas
Examples of sublimination
dry ice and moth balls
The temperature at which a substance changes from a solid to a liquid.
The process in which rocks or other solids change to liquids
The process in which water or any other liquid changes to a solid
The temperature at which a substance freezes
Change in state from a gas to a liquid
The temperature at which condensation begins
The temperature at which a liquid changes to a gas
The change of state from a liquid to a gas
The boiling point of pure water
The freezing point of pure water
Solids whose particles are not arranged in a regular pattern
A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern
kinetic theory of matter
the idea that all matter is made up of tiny particles in constant motion
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