CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set E

Read and download free pdf of CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set E. Download printable Science Class 9 Worksheets in pdf format, CBSE Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 9 Assignments and practice them daily to get better marks in tests and exams for Class 9. Free chapter wise worksheets with answers have been designed by Class 9 teachers as per latest examination pattern

Chapter 2 Is Matter Around Us Pure Science Worksheet for Class 9

Class 9 Science students should refer to the following printable worksheet in Pdf in Class 9. This test paper with questions and solutions for Class 9 Science will be very useful for tests and exams and help you to score better marks

Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet Pdf

 
 
Very Short Answer
 
Question : Why is air considered as mixture? Give an example of heterogenous mixture. 
Ans: Air is considered as mixture because its composition varies.
Iodized table salt.
 
Question : Define Tyndall effect. 
Ans: The phenomenon of scattering light by the particles due to which the path of light becomes visible.
 
Question : Name two elements which exist in liquid state at room temperature. 
Ans: Gallium and mercury.
 
Question : What is mass per cent of a solution?
Ans: It is defined as the mass in grams of the solute present in one hundred grams of a solution.
 
Question : How can you change a saturated solution to an unsaturated solution without adding any more solvent to it?
Ans: By heating the saturated solution, it becomes unsaturated.
 
 
Short Answer
 

Question : List the points of differences between homogeneous and heterogeneous mixtures.
Answer :

Homogeneous mixture
Its constituent’s particles cannot be seen easily.
There are no visible boundaries of separation in a homogeneous mixture.
Its constituents cannot be easily separated.
Examples: Alloys, solution of salt in water etc.
Heterogeneous mixture
Its constituent particles can be seen easily.
Have visible boundaries of separation between the constituents.
Its constituents can be separated by simple methods.
Examples: Mixture of sand and common salt, mixture of sand and water etc.

 

Questions : How are sol, solution and suspension different from each other?
Answer :

Solution or true solution is homogeneous.
NO Tyndall effect.
Solute particles cannot be filtered by using a filter paper
True solution is transparent.
Examples: Sea water, alloys, solution of lemon juice in water etc.
Sol (colloidal solution) :
Sol or colloidal solution is heterogeneous.
Tyndall effect.
Cannot be separated by ordinary filter paper.
It may be transparent or translucent.
Examples: Milk of magnesia, cough syrup, mist, fog, clouds, smoke, mud etc.
Suspension :
Suspension is also heterogeneous.
Tyndall effect.
It may be transparent or translucent.
Separated easily by filter paper.(because of large particles)
Examples: Mixture of sand in water, mixture of chalk in water.

 

 

 

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CBSE Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet

The above practice worksheet for Chapter 2 Is Matter Around Us Pure has been designed as per the current syllabus for Class 9 Science released by CBSE. Students studying in Class 9 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 9 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 9 Science students to get all the latest study material free of cost.

Worksheet for Science CBSE Class 9 Chapter 2 Is Matter Around Us Pure

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Chapter 2 Is Matter Around Us Pure worksheet Science CBSE Class 9

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Chapter 2 Is Matter Around Us Pure CBSE Class 9 Science Worksheet

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Worksheet for CBSE Science Class 9 Chapter 2 Is Matter Around Us Pure

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