Studied by 41 people
Science test
Matter
Anything that has mass and takes up space
Solid
Matter that has a definite shape and volume
liquid
matter that does not have a definite shape but does have a definite volume
gas
matter that does not have a definite shape or volume
pure substance
made up of only one type of matter
homogeneous
every part of the substance has the same composition as every other part
mixture
made up of two or more different substances
mechanical mixtures
A mixture that does not have the same appearance throughout
heterogeneous
A mixture where can see the differences with the naked eye
heterogeneous mixtures
mechanical mixtures
Solutions
the same appearance throughout, but are made up of two or more substances
Particles
very small portions of matter
The particle theory of matter
a theory that describes matter.
Kinetic energy
the energy of movement.
Temperature
the measure of the average kinetic energy of the particles in a substance
Heat
the energy that transfers from a substance at a higher temperature to one at a lower temperature
A change of state
a change from one physical state of matter (solid, liquid, gas) to another
Look over this diagram
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melting
The change of state from a solid to a liquid
evaporation
The change of state from liquid to gas
condensation
The change of state from gas to liquid
freezing/solidification
The change of state from liquid to solid
sublimation
The change of state from solid to gas
deposition
The change of state from gas to solid
Particle Theory of Matter Rule #1
All matter is made up of particles
Particle Theory of Matter Rule #2
All particles of one substance are identical
Particle Theory of Matter Rule #3
The particles of matter are in constant motion
Particle Theory of Matter Rule #4
Temperature affects the speed at which particles move
Particle Theory of Matter Rule #5
Particles have forces of attraction between them
Particle Theory of Matter Rule #6
There are spaces between particles
Mass
the amount of matter in an object
Note 
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