Science NCERT Solutions for Class 9 Science

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Is Matter Around Us Pure CBSE Class 9
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Is Matter Around Us Pure

• Matter is anything that occupies the space and
  has certain mass. Matter can be impure or pure.
  Impure matter is a mixture of many pure
  substances. Mixture contains more than one kind
  of pure form of matter in which their
  constituents do not lose their identity.
• Suspension is a type of heterogeneous mixture.
  Colloid is a type heterogeneous mixture with a
  dispersed phase and a dispersion medium. Their
  particle size is more than the 1 nanometer but
  particles cannot be seen with naked eye. These
  particles can scatter light.
• The components of a mixture can be separated by
  various physical methods that include
  evaporation, sublimation, separating funnel
  method etc. Evaporation is used to separate a
  volatile component from a non-volatile component.
  Sublimation is used to separate a sublimable
  volatile component from a non-sublimable
  component. Separating funnel method is used to
  separate two immiscible liquids from their
  mixture.

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Extramarks Approach

• NCERT Solutions for Class 9 Science can be found
  on the Extramarks app and the website. The app
  has solutions for all the textbook questions that
  can help the students become thorough with the
  chapters and the questions. The app can be a good
  and reliable learning tool for students. Download
  the Extramarks app and get a trial period of
  7days free of charge.
• For more information visit and register at
  Extramarks website.
• https//www.extramarks.com/study-material/icse-c
  lass-9/economics

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