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Is Matter Around Us Pure — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure3 Marks
Question
State the principle of centrifugation. Give its two applications.
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Answer

The principle of centrifugation is that the denser particles are forced to settle at the bottom yhile the lighter particles stay at the top vhen spun rapidly.
APPLICATIONS:
  1. Used in dairy to separate butter from cream.
  2. Used for blood and urine test.
  3. Used in vashing machine to squueze out vater from clothes.

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