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Science 8 - Matter & Mixture

Terms in this set (27)

mixture
a combination of two or more pure substances such as that each one's properties are not lost, but may be hidden
pure substance
a material that is made up of only 1 kind of particle. Can be an element or a compound
mechanical mixture
heterogeneous mixture of 2 or more substances
homogeneous
a mixture that is made up of different things, but has 1 set of properties and looks like only 1 thing
heterogenous
a mixture that is made up of different things, where each thing retains its properties. It therefore has unique properties for each thing.
solution
a homogenous mixture of two or more pure substances
solute
a substance that dissolves in a solvent, like salt dissolving in water.
solubility
the mass of a solute that can dissolve in a given amount of solvent to form a saturated solution at a given temperature
soluble
The ability of something to dissolve, forming a solution.
solvent
a substance that dissolves a solute to form a solution (e.g., water that dissolves salt)
suspension
a heterogeneous mixture in which particles settle slowly after mixing. Dirty water or orange juice is an example of this
colloid
a heterogeneous mixture in which particles do not settle, like fat particles in milk
emulsion
a mixture in which droplets of fat are prevented from joining together by an emulsifying agent. Mayonnaise is an example of this.
dissolving
forming a solution by mixing two or more materials together.
Agitation
stirring or shaking
Saturated
a solution that is full. No more solute will dissolve at a specific temperature
Insoluble
not able to be dissolved. It will not mix to form a solution
Viscosity
the measure of how fast a fluid will flow; the "thickness" or "thinness" of a fluid in a particular solvent
Flow rate
the volume of fluid that passes a point in a pipe or tube in a certain amount of time.
Density
the amount of mass in a certain unit volume of a substance (density equals mass divided by volume)
Mass
the amount of matter in a substance
Volume
the measurement of the amount of space occupied by a substance
low viscosity
a very thin fluid that flows very fast.
high viscosity
a very thick fluid that does not flow very fast.
Buoyancy
the tendency to rise or float in a fluid
unsaturated
a solution that is not full. More solute can be dissolved at a specific temperature
supersaturated
a solution that is over full. More solute has been dissolved because it was added at a higher temperature
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