CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension

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True Solution Colloid Suspension 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 True Solution Colloid Suspension Worksheet Pdf

TRUE SOLUTION, COLLOID & SUSPENSION
 
Experiment –2                      ………… Date:
 
Objective: To prepare:
 
(a) A true solution of common salt/ sugar
 
(b) A suspension of soil/chalk powder in water &
 
(c) A colloidal dispersion of starch/egg albumin/milk in water
 
Requirements: Test tubes, Test tube rack, Corks, milk, distilled water, common salt, chalk powder, water etc.
 
Procedure:
 
1. Take about 5-10 ml of distilled water in a test tube.
 
2. Add about a drop or 2 of milk to it and mix well.
 
3. Allow to stand for some time
 
4. Dissolve common salt in about 5 ml of water taken in a test tube to prepare a sample of true solution
 
5. Mix chalk powder in about 5 ml. of water to prepare a sample of suspension.

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 1

Precautions:
 
1. Use only dilute solutions
 
2. Do not add excess of milk
 
3. Use a very fine powder of chalk
 
Answer the following:
 
1. Give four examples of colloidal dispersions.
 
2. Are colloidal particles neutral of electrically charged?

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 2

3. Give the difference between colloidal dispersion and suspension.
 
Property                                 Colloid                                      Suspension
 
Particle size:                    10-7 to 10-5cm                                   >10-5 cm
 
Visibility:                               invisible                                       visible
 
                                          Translucent                                    Opaque
                                   
                                        Shows Tyndall effect                         Shows only when stirred
 
                                       Shows Brownian movement                Does not show
 
 
4 It is not correct to use the term “solution” to represent a colloid. Why?
 
5 Classify the following as suspension, true solution and colloid:
 
a. Sugar syrup b. chalk powder in water c. salt solution
 
d. soap solution e. S in CS2 f. human blood
 
Multiple choice type questions

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 2


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True Solution Colloid Suspension CBSE Class 9 Science Worksheet

The above practice worksheet for True Solution Colloid Suspension 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. Teachers of studiestoday have referred to the NCERT book for Class 9 Science to develop the Science Class 9 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 9 Science designed by our teachers. After solving these you should also refer to Class 9 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 9 Science which you can use to further make yourself better in Science.

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