03/05/2026, 18:29 Exploring Mixtures and their Separation Chapter Notes | Science Class 9 New NCERT 2026-27 (New Syllabus) PDF Download
Chapter Notes: Exploring Mixtures and their Separation
Table of Contents
1. Introduction
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2. How Can We Classify Mixtures?
3. Solutions
4. Methods of Separation of Homogeneous Mixtures
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5. How Can We Separate Components of Heterogeneous Mixtures?
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View More
Introduction
V
RE
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https://edurev.in/t/522997/chapter-notes-exploring-mixtures-and-their-separation#course_157501 1/21
, 03/05/2026, 18:29 Exploring Mixtures and their Separation Chapter Notes | Science Class 9 New NCERT 2026-27 (New Syllabus) PDF Download
U
This chapter explores mixtures in greater depth - their properties, behaviour, and the various
ED
techniques used to separate them. From industrial processes like sugar production to life-saving
medical tests, the separation of mixtures plays a crucial role in our daily lives.
1. How Can We Classify Mixtures?
Homogeneous Mixture (Solution)
A homogeneous mixture has a uniform composition throughout. Every part of the mixture looks
and tastes the same.
Example: Sugar dissolved in water - equally sweet from first sip to last.
Other examples: Vinegar (acetic acid in water), aerated drinks (carbon dioxide in water).
A solution is always homogeneous.
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RE
U
ED
Heterogeneous Mixture
A heterogeneous mixture is non-uniform. Its composition varies from one part to another.
Example: Sand and water - sand particles are visible and settle with time.
Other examples: Muddy water, oil and water, chalk powder in water.
2. Solutions
V
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, 03/05/2026, 18:29 Exploring Mixtures and their Separation Chapter Notes | Science Class 9 New NCERT 2026-27 (New Syllabus) PDF Download
A solution is a homogeneous mixture of two or more substances.
V
RE
U
ED
Solute: The substance that gets dissolved (e.g., sugar).
Solvent: The substance that dissolves the solute (e.g., water).
2.1 Concentration of a Solution
The amount of solute dissolved in a given amount of solvent or solution is called the
concentration of the solution. The right proportion of solute and solvent is always essential when
making a solution.
Example: ORS (Oral Rehydration Solution) must have specified amounts of salt and sugar in
water. Too little or too much can make it ineffective or harmful.
V
Note: Not all sugary drinks prepared at home or sold in the market are ORS.
RE
U
ED
https://edurev.in/t/522997/chapter-notes-exploring-mixtures-and-their-separation#course_157501 3/21
Chapter Notes: Exploring Mixtures and their Separation
Table of Contents
1. Introduction
V
2. How Can We Classify Mixtures?
3. Solutions
4. Methods of Separation of Homogeneous Mixtures
RE
U
5. How Can We Separate Components of Heterogeneous Mixtures?
ED
View More
Introduction
V
RE
U
https://edurev.in/t/522997/chapter-notes-exploring-mixtures-and-their-separation#course_157501 1/21
, 03/05/2026, 18:29 Exploring Mixtures and their Separation Chapter Notes | Science Class 9 New NCERT 2026-27 (New Syllabus) PDF Download
U
This chapter explores mixtures in greater depth - their properties, behaviour, and the various
ED
techniques used to separate them. From industrial processes like sugar production to life-saving
medical tests, the separation of mixtures plays a crucial role in our daily lives.
1. How Can We Classify Mixtures?
Homogeneous Mixture (Solution)
A homogeneous mixture has a uniform composition throughout. Every part of the mixture looks
and tastes the same.
Example: Sugar dissolved in water - equally sweet from first sip to last.
Other examples: Vinegar (acetic acid in water), aerated drinks (carbon dioxide in water).
A solution is always homogeneous.
V
RE
U
ED
Heterogeneous Mixture
A heterogeneous mixture is non-uniform. Its composition varies from one part to another.
Example: Sand and water - sand particles are visible and settle with time.
Other examples: Muddy water, oil and water, chalk powder in water.
2. Solutions
V
https://edurev.in/t/522997/chapter-notes-exploring-mixtures-and-their-separation#course_157501 2/21
, 03/05/2026, 18:29 Exploring Mixtures and their Separation Chapter Notes | Science Class 9 New NCERT 2026-27 (New Syllabus) PDF Download
A solution is a homogeneous mixture of two or more substances.
V
RE
U
ED
Solute: The substance that gets dissolved (e.g., sugar).
Solvent: The substance that dissolves the solute (e.g., water).
2.1 Concentration of a Solution
The amount of solute dissolved in a given amount of solvent or solution is called the
concentration of the solution. The right proportion of solute and solvent is always essential when
making a solution.
Example: ORS (Oral Rehydration Solution) must have specified amounts of salt and sugar in
water. Too little or too much can make it ineffective or harmful.
V
Note: Not all sugary drinks prepared at home or sold in the market are ORS.
RE
U
ED
https://edurev.in/t/522997/chapter-notes-exploring-mixtures-and-their-separation#course_157501 3/21
