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Changes in StateBy Mr. V. Calzada
Three States of Matter
There are three states of matter. A solid has a definite shape and definite volume. A liquid has a definite volume but no definite
shape. A gas does not have definite shape or volume
Most matter exists in one or more states
Particles of Matter - Solid
Particles in matter are in motion.
In a solid, the particles are very close together and there is very space between them.
The only thing the particles can do is vibrate in place.
As a result, solids have (fixed) definite shape and volume.
Particles of Matter - Liquid
Particles are not tightly packed in a liquid, as a result they move more freely.
It can flow and take the shape of the container.
Particles can move over each other.
Liquids do not have definite shape but they do have definite volume.
Particles of Matter - Gas
The particles in a gas are packed together the least.
Particles move the fastest in this state.
Particles take the shape of the container.
Matter in a gas state does not have definite shape or definite volume.
Changes Between States of Matter
Melting and Boiling Points
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