Properties of Matter
Properties of Matter Terms
Boiling PointThe temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure.
Chemical Change/ProcessA method of changing one or more chemicals or chemical compounds into different chemicals or chemical compounds.
Chemical PropertyA property used to characterize materials in reactions that change their identity. No real estate here.
CompoundCombinations of two or more elements that are chemically bonded together in a set ratio.
CondensationThe conversion of a gas into a liquid. Think of your windows when it's cold outside.
Crystal LatticeA three-dimensional array of points that represents the pattern of repetition in a crystalline solid. Diamonds are a lattice's best friend.
DensityMass of a substance per unit volume.
Displacement MethodA means of finding the volume of irregularly shaped object by submerging it into a known volume of water and measuring the change in volume that occurs. Want to know your volume? Take a dip in the pool.
ElementA pure substance that cannot be decomposed. All the atoms are the same.
FiltrationThe act of passing a liquid or gas through a filter to remove solid particles. Oil filters in your car do this.
FlammabilityThe quality of being easily ignited and burned rapidly.
FreezingThe conversion of a liquid into a gas.
Freezing PointThe temperature at which a liquid becomes a solid.
GasMatter in a form that has low density, is easily compressible, expands spontaneously when placed in a larger container, and has particles that are far apart and move freely.
HeatA means by which energy is transferred from a hot body to a colder body when the two are placed in thermal contact with one another. Think of the heat coming off of a hot cup of cocoa.
HeterogeneousA sample of matter consisting of more than one phase.
HomogeneousA sample of matter consisting of a single phase.
LiquidA state of matter that has a high density, low compressibility, takes the shape of it's container, and possesses particles that are close together but are still able to flow.
MacroscopicVisible to the naked eye; not microscopic.
MalleabilityThe property that describes the ability of something that can be worked, hammered, or shaped without breaking.
MassThe quantity of matter in a body.
MatterAnything that has mass and volume.
MeltingThe process of a solid becoming a liquid.
Melting PointThe temperature at which liquid and solid coexist in equilibrium.
MicroscopicExtremely small, not visible with the naked eye.
MixtureA sample of matter composed of two or more substances, each of which retains it's own identity and properties.
ParticleThe building block of matter usually in the form of atoms, molecules, or ions.
Physical Change/PropertyA change that does not transform one substance into another.
PlasmaThe fourth state of matter in which many electrons wander around freely among positively charged nuclei of atoms.
SolidA dense, rigid state of matter with a definite volume and shape whose particles are packed closely together.
SublimationThe process of a solid becoming a gas. Think of the ice cubes that disappear in your freezer—there's no melting going on there.
SubstanceA sample of matter that has the same chemical composition and physical properties.
SuspensionA heterogeneous mixture in which solute particles settle out of a solvent after a period of time.
Vaporization (or Boiling Point)The temperature at which a liquid becomes a solid.
ViscosityThe measure of a liquid's resistance to flow. Maple syrup is more viscous than water.
VolumeA measurement of the amount of space contained within a three-dimensional shape.
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