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Introduction to types of heterogeneous mixtures

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Is it milk?

What classifies a suspension?

Credit: Helena Steffens
Source: Helena Steffens
License: CC BY-NC 3.0


A suspension is a heterogenous mixture that contains solid particles of which are large enough for sedimentation. A classic example of a suspension is sand in water.

Of the two glasses shown above, one contains a mixture of flour and water, and the contains milk. Can you tell the difference between these two substances? Take note of the physical characteristics of each fluid to determine which is which. 

Creative Applications

  1. Which glass do you think is milk?
  2. Is milk a suspension?
  3. What type of mixture does the flour and water represent?
  4. Why is it classified as a suspension?
  5. What other ingredients could you use to create a suspension?

Maybe next time you decide to serve someone milk, you can decide to serve flour and water instead! ;)

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  1. [1]^ Credit: Helena Steffens; Source: Helena Steffens; License: CC BY-NC 3.0

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