CBSE Class 9 Science Matter in Our Surroundings Worksheet Set 08

Practice Worksheets for Class 9 Science: Chapter 01 Matter in Our Surroundings

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Practice Chapter 01 Matter in Our Surroundings Worksheets for Class 9 Science

View or download the dedicated Chapter 01 Matter in Our Surroundings practice resource below. Engaging with these objective and subjective questions daily ensures continuous academic progress and mastery of the 2026-27 curriculum.

MATTER IN OUR SURROUNDINGS

WORKSHEET- I
 
1. Name two natural processes which provide the evidence for molecular motion.
 
2.Name two factors which determine the physical states of matter.
 
3.Name the process by which a crystal of copper sulfate dissolves in water.
 
4.Which property of gases makes it possible to fill large volumes into small cylinders?
 
5.A spoonful of sugar is added to a beaker containing some water and the mixture is stirred. State any two observations that you can make.
 
6.Suggest a method to liquefy atmospheric gases.
 
7.Why do we feel cool after applying shave lotion or perfume?
 
8.We cannot break a stream of water by putting finger across it.
 
9.Chalk markings can not be easily rubbed off from a black-board if kept for a longer time.
 
10.What produces more severe burns , boiling water or steam & why?
 
11.List any four characteristics of particles of matter.
 
12.An empty jar is inverted over a jar containing Bromine vapours. After some time , we can observe the reddish brown colour in both the jars. Name the process involved & explain how this happens.
 
13.Name the physical state of matter in each case.
 
a) has a definite volume but no definite shape.
 
b) is rigid and highly incompressible.
 
c) density is maximum but KE is minimum.
 
d) represents the most highly compressible form of matter.
 
14.Distinguish solids , liquids and gases in a tabular form using the properties mentioned below.
 
a)Rigidity b)Compressibility c)Kinetic Energy d) Density
 
15.What is diffusion and explain why it is slowest & insignificant in solids.
 
16. Ice, water and steam are the three states of the same substance. Justify.
 
17.Convert the following Celsius temperatures to Kelvin scale
 
i) -2730C           ii) 27.50C               iii) -1000C         iv) – 400C
 
18. Dry ice is obtained when a gas is compressed at high pressure. Name the gas and state what happens to it when the pressure is released.

19.Latent heat of vaporization of two liquids A and B is 100J/kg and 150J/kg respectively. Which one can produce more cooling effect and why?

20. Give reasons :
 
a) Evaporation causes cooling.
 
b) Clothes dry faster on a windy day.
 
c) Smell of perfume travels a few yards away.
 
d) Doctors advice to put wet cloth on the forehead when we have temperature.
 
e) Ice at 00C is more effective in cooling than water at 00C.
 
f)Water have higher boiling point than alcohol?
 
21a) What happens to m.p & b.p of a substance when impurity is added ?
 
b)When a solid melts, its temperature remains the same. Give reason.
 
22.Write one activity to show that air contains water vapour.
 
23. Distinguish between evaporation & boiling.
 
24.Name the processes involved in the following cases.
 
a)Solid into liquid b) Liquid into vapour below its boiling point
 
c)Solid into vapour/gas d) Gas/vapour into Liquid
 
e)Liquid into solid f) Gas or vapour into solid
 
25.When water is heated at a temperature ‘X’ by a process called ‘P’& when steam gets reconverted at the same temperature into water and the process is called as ‘Q’.
 
a) What is the temperature ‘X’ in Kelvin ?
 
b) Name the processes ‘P’& ‘Q’ known as ?
 
c) Name the energy released and absorbed during P &Q respectively ?



Please click on below link to download CBSE Class 9 Science Matter in Our Surroundings Worksheet Set H

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Exam Preparation Worksheet for Class 9 Science Chapter 01 Matter in Our Surroundings

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FAQs

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Are these Science Class 9 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 9 Science Matter in Our Surroundings Worksheet Set 08 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

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Yes, we have provided detailed solutions for CBSE Class 9 Science Matter in Our Surroundings Worksheet Set 08 to help Class 9 and follow the official CBSE marking scheme.

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