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Chap 3 &4
Matter, Mixtures, Solutions
26
Science
8th Grade
11/01/2011

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Cards

Term
3 States of matter
Definition
Solid, Liquid, Gas
Term
Matter
Definition
What we're made of
Term
Mass
Definition
Amount of matter in an object/kilograms
Term
Density =
Definition
mass divided by volume
Term
Will float if density is lower than
Definition
1g (cm-3)
Term
Expansion
Definition
Getting larger. Gases expand when heated
Term
Contraction
Definition
Getting smaller. Gases contract when cooled
Term
Insulation
Definition
non-metals (poor conductors of heat)
Term
properties
Definition
smell, touch, feel, taste etc.
Term
Pure substances
Definition
Fixed composition and properties
Term
Mixtures
Definition
Variable composition and properties
Term
Solutions
Definition
Where two substances dissolve into each other
Term
Suspension
Definition
Where solids settle, do not dissolve
Term
Soluble
Definition
Substance that disolves
Term
Insoluble
Definition
Substance that doesnt disolve
Term
Solute
Definition
Substance that DISSOLVES
Term
Solvent
Definition
Substance that does the DISSOLVING
Term
Dilute
Definition
Contains a small amount of solute compared to amount of solvent
Term
Concentrate
Definition
Contains a larger amount of solute compared to amount of solvent
Term
Saturation
Definition
When solutions wont dissolve any more solute
Term
Decanting
Definition
Gently tipping liquid out while leaving the solid in the container
Term
Centrifuge
Definition
A machine used to separate solids from liquids using a spinning motion
Term
Filtrate
Definition
The solution that passes through filter paper and into container (when filtering)
Term
Residue
Definition
Solid material left in filter paper (when filtering)
Term
Distillation
Definition
Trapping liquid as it evaporates from a solution (when separating a solution)
Term
Chromatography (Separating colours)
Definition
Separating ink from paper
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