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Science mixtures

notes 1-3

TermDefinition
physical properties characteristics that can be observed or measured without changing the makeup of the substance
examples of physical properties mass, weight, volume, density, shape, size, color, smell, texture
physical change a change that does not produce new substances
a phase change is a physical change
chemical properties characteristics that can only be observed by changing the makeup of the substance
chemical change a change that produces new substances
what happens to the matter in a physical change the matter is the same. the original matter can be recovered.
what happens to the matter in a chemical change the matter is different. the old matter is no longer present. the original matter can not be recovered.
what happens to the particles in a physical change the particles are simply re-arranged
what happens to the particles in a chemical change the particles of the substance are broken apart, and the atoms are re-arranged into new particles, forming a new substance
mixture two or more substances that have been combined physically not chemically
mixtures can be separated by physical means
homogeneous mixture a mixture in which all substances appear one color
heterogeneous mixture a mixture in which all substances have more than one color
filtration separates bigger particles from smaller particles
evaporation some particles turn to gas and others stay behind
distillation evaporating a a liquid and then condensing it again
magnitism separating a mixture where one substance has magnetic properties
solution a mixture in which one substance is dissolved in another substance
dissolve to mix evenly
soluble able to dissolve in water
insoluble unable to dissolve in water
solute the substance that does the dissolving
solvent the substance in which a solute disolves
universal solvant water
polar molecule a molecule in which one end has a positive charge and the other has a negative charge
aqueous solution a solution where liquid water is a solevent
gaseous solution a solution in which a solid, liquid, or gas is dissolved in a gas
solid solution a solution in which a solid, liquid, or gas is dissolved in a solid
stirring allows solute particles to squeeze in between solvent particles
crushing breaks particles into smaller pieces
heating makes particles move faster and farther apart
Created by: hammy1331