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52 Cards in this Set

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are solid, liquid, gas, plasma.

states of matter -
is the amount of force exerted per unit of area.

pressure -
tiny particles in constant motion make up all matter.
kinetic theory of matter -
amount of energy needed to change a material from a liquid to a gas.

heat of vaporization
is the SI unit of pressure.

pascal -
pressure applied to a fluid is transmitted unchanged through the fluid.

pascals principal
is water that contains such high levels of unwanted materials that it is unacceptable for drinking or other specific purposes.
polluted water -
is a gaslike mixture of positively and negatively charged particles.
plasma -
have definite shape and definite volume
solids -
excess heat in water
thermal pollution -
all matter expands as it gets hotter then contracts when it cools.
thermal expansion -
is the reduction in pressure of a fluid resulting from the speed increase as fluids are forced to flow faster through narrow spaces
venturi effect -
have definite shape and definite volume
solids -
are materials that appear to be solids but are not made of crystals such as glass, many plastics and some kids of wax.
amorphous solids -
take on the shape of their container and has definite volume
liquids -
is matter in which all atoms are alike.

element -
expand or contract to fill the space available to them. Gases have neither a definite shape nor a definite volume.

gases -
are elements and compounds.
Substances -
is a material made from atoms of two or more elements that are combined.
compound -
is the amount of energy needed to change a material from the solid state to the liquid state.
. heat of fusion -
is the temperature at which a solid changes to a liquid
melting point -
is clumps of small particles.

coagulation -
is a type of mixture in which different materials are spread out unevenly and are easily distinguished.

heterogeneous mixture -
is a material made of elements or compounds stirred together but not combined chemically.
mixture -
is a type of mixture in which all substances are uniformly spread out, and not easily distinguished is a homogeneous mixture.
homogeneous mixture -
is a heterogeneous mixture that does not separate.

colloid -
is a homogeneous mixture that remains uniformly and constantly mixed.

solution -
is a scattering of light by particles in a mixture.

Tyndall Effect -
is a heterogeneous mixture containing a liquid in which visible particles settle.

suspension -
- is a change in size, shape or state of matter.

physical change
is a characteristic of a material that can be easily observed without changing the substances that make up the material.

physical property -
is a change of one substance in a material to a different substance.
chemical change -
if you decrease the volume of a container of gas, the pressure of the gas will increase, provided the temperature does not change.
boyles law
is a characteristic that helps to identify a substance by describing how the substance will undergo a chemical change.
chemical property -
on the Celsius scale is 0.
freezing point -
principle is buoyancy force on an object in a fluid is equal to the weight of the fluid displaced by the object.
Archimedes Principal
explains that matter is neither created nor destroyed during a chemical change.
law of conservation of mass -
as the velocity of a fluid increases the pressure exerted by the fluid decreases.

Bernoullis principle
is the amount of space occupied by an object
volume -
is when liquid changes to a gas gradually at temperatures below the boiling point.

. evaporation -
force is the ability of a fluid, a liquid or a gas, to exert an upward force on an object immersed in it.

buoyant
the volume of a gas increases with increasing temperature provided the pressure stays the same.
Charles law
force is the ability of a fluid, a liquid or a gas, to exert an upward force on an object immersed in it.

buoyant
is when a solid changes directly into a gas.



sublimation -
take place when a gas changes to a liquid
condensation -
two or more substances combine to form another substance.
synthesis reaction
particles are arranged in repeating geometric patterns

crystal
is when one substance breaks down, or decomposes, into two or more simpler substances.
Decomposition reaction
occurs when one element replaces another in a compound.
single displacement reaction
takes place if a precipitate water, or a gas forms when two ionic compounds in solution are combined.
double displacement reaction
is an insoluble compound formed during a double displacement reaction.

precipitate
is a chemical reaction in which less energy is required to break original bonds than is released when new bonds form. In an exothermic reaction some form of energy is given off by the reaction
exothermic reaction