NCERT Solutions Class 9th Science Matter in Our Surroundings The Class 9 Science Chapter 1 NCERT answers are all available here. This solution includes all of the material covered in Class 9’s Chapter 1: Matter in Our Surroundings of Science, including questions, answers, illustrations, and step-by-step instructions. If you are a ninth-grade student studying science using the NCERT Textbook, you have probably encountered Chapter 1: Matter in Our Surroundings. You should be searching for the solutions to the questions after studying the lecture. All of the NCERT solutions for Class 9 Science Chapter 1: Matter in Our Surroundings are available right here. You should also refer to the Science class notes for Chapter 1 Matter in Our Surroundings for a deeper understanding of this chapter.
NCERT Solutions for Class 9 Science Matter in our surroundings Chapter 1 Intext Questions
NCERT Solutions Class 9 science matter in our surroundings
Page Number: 3
Question 1
Which of the following are matter? Chair, air, Love, Smell, Hate, Almonds, Thought, Cold, Lemon Water, Smell of Perfume.
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Question 2
Give reasons for the following observation: The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food, you have to go close.
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Question 3
A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?
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Question 4
What are the characteristics of the particles of matter?
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NCERT Solutions Class 9 science matter in our surroundings
Page Number: 6
Question 1
The mass per unit volume of a substance is called density, (density = mass/volume) Arrange the following in order of increasing density – air, exhaust from chimneys, honey, water, chalk, cotton and iron.
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Question 2
(a) Tabulate the differences in the characteristics of states of matter.
(b) Comment upon the following : rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density
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Question 3
Give reasons
(a) A gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container.
(c) A wooden table should be called a solid.
(d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate
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Question 4
Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why?
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NCERT Solutions Class 9 science matter in our surroundings
Page Number: 9
Question 1
Convert the following temperature to Celsius scale:
(a) 300 K
(b) 573 K.
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Question 2
What is the physical state of water at:
(a) 250°C
(b) 100°C?
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Question 3
For any substance, why does the temperature remain constant during the change of state?
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Question 4
Suggest a method to liquefy atmospheric gases.
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NCERT Solutions Class 9 science matter in our surroundings
Page Number: 10
Question 1
Why does a desert cooler cool better on a hot dry day?
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Question 2
How does the water kept in an earthen pot (matka) become cool during summer?
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Question 3
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
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Question 4
Why are we able to sip hot tea or milk faster from a saucer rather than a cup?
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Question 5
What type of clothes should we wear in summer?
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NCERT Solutions for Class 9 Science Matter in Our Surroundings Chapter 1 Exercise Questions (Textbook Chapter End Questions)
NCERT Solutions Class 9 science matter in our surroundings
Question 1
Convert the following temperatures to Celsius scale:
(a) 293 K (b) 470 K
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Question 2
Convert the following temperatures to the Kelvin scale:
(a) 25°C (b) 373°C
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Question 3
Give reasons for the following observations:
(a) Naphthalene balls disappear with time without leaving any solid.
(b) We can get the smell of perfume sitting several metres away.
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Question 4
Arrange the following substances in increasing order of forces of attraction between the particles – water, sugar, oxygen.
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Question 5
What is the physical state of water at
(a) 25°C
(b) 0°C
(c) 100°C?
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Question 6
Give two reasons to justify:
(a) water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature.
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Question 7
Why is ice at 273 K more effective in cooling than water at the same temperature?
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Question 8
What produces more severe burns, boiling water or steam?
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Question 9
Name A, B, C, D, E and F in the following diagram showing change in its state.
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The Importance of Matter
Understanding Matter: Its Role and Impact in Our Lives
Grasping the essence of matter is vital for our insight into the universe. Matter is present in multiple forms and has distinctive attributes that influence how it acts. Examining matter helps us resolve essential inquiries about our environment, enriching our grasp of physical processes. Here, we will delve into the relevance of matter in our everyday experiences and its effect on how we engage with our surroundings by Bhautik study.
