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Mixtures A mixture is made from two or more substances or elements that are in the same place, but do not combine chemically to make a new material. Each substance in the mixture keeps its individual characteristics/ properties. Two types: –Heterogeneous and Homogeneous
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MixturesMixtures
MixturesMixturesMost matter you find in Most matter you find in your environment, like the your environment, like the milk we drink, the air we milk we drink, the air we breathe, and the sidewalks breathe, and the sidewalks on which we walk, occur as on which we walk, occur as parts of mixtures. parts of mixtures.
MixturesMixturesA mixture is made from two or more A mixture is made from two or more
substances or elements that are in substances or elements that are in the same place, but the same place, but do not combine do not combine chemically to make a new material. chemically to make a new material.
Each substance in the mixture Each substance in the mixture keeps its individual characteristics/ keeps its individual characteristics/ properties.properties.
Two types: Two types: –HeterogeneousHeterogeneous and and HomogeneousHomogeneous
Heterogeneous Mixtures Heterogeneous Mixtures In some mixtures, the different In some mixtures, the different
parts are visible.parts are visible.–Salads or Chex MixSalads or Chex Mix
The different parts can be easily The different parts can be easily separated by physical means.separated by physical means.–For example, you can pick the For example, you can pick the tomatoes out of a salad.tomatoes out of a salad.
Homogeneous MixturesHomogeneous Mixtures In other mixtures, the individual parts In other mixtures, the individual parts
are so evenly mixed, it is difficult to are so evenly mixed, it is difficult to identify the different pieces.identify the different pieces.– milk and salt watermilk and salt water
The parts of the mixture are more The parts of the mixture are more difficult to separatedifficult to separate– you cannot pick the salt out of the water you cannot pick the salt out of the water
with your fingerswith your fingers– processes such as distillation or filtration processes such as distillation or filtration
may be required.may be required. Homogeneous mixtures are also known Homogeneous mixtures are also known
as as SolutionsSolutions
