# NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings

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NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings: As we look at our surroundings, we see a large variety of things with different shapes, sizes and textures. Everything in this universe is made up of material which scientists have named “matter”. The air we breathe, the food we eat, stones, clouds, stars, plants and animals, even a small drop of water or a particle of sand – everything is matter. We can also see as we look around that all the things mentioned above occupy space and have mass.

Modern-day scientists have evolved two types of classification of matter based on their physical properties and chemical nature. So, in Chapter 1 Matter in Our Surroundings, you will study and learn about the matter based on its physical properties. Chemical aspects of matter will be taken up in subsequent chapters.

Here are the important Topics of NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings mentioned below:

1.1 Physical Nature of Matter

1.1.1 Matter Is Made up of Particles

1.1.2 How Small Are These Particles of Matter?

1.2 Characteristics of Particles of Matter

1.2.1 Particles of Matter Have Space Between Them

1.2.2 Particles of Matter Are Continuously Moving

1.2.3 Particles of Matter Attract Each Other

1.3 States of Matter

1.3.1 the Solid State

1.3.2 the Liquid State

1.3.3 the Gaseous State

1.4 Can Matter Change Its State?

1.4.1 Effect of Change of Temperature

1.4.2 Effect of Change of Pressure

1.5 Evaporation

1.5.1 Factors Affecting Evaporation

1.5.2 How Does Evaporation Cause Cooling?

After going through Class 9 Science Chapter 1 Matter in Our Surroundings, you must be able to get the NCERT Solution of these questions which are mentioned below, as these questions are from NCERT book.

Q1. What is the physical state of water at-

• (a) 25°C
• (b) 0°C
• (c) 100°C ?

Q2. Give two reasons to justify-

• (a) water at room temperature is a liquid.
• (b) an iron almirah is a solid at room temperature.

Q3. Why is ice at 273 K more effective in cooling than water at the same temperature?

If you have any problem in answering these questions or you are not getting the correct answers then don't worry, NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings is there for you to help. Solutions for NCERT Class 9 Science Chapter 1 Matter in Our Surroundings will give you answers to all the questions which are mentioned in the NCERT book. First of all, try to answer all the questions by yourself.

## NCERT Solutions for Class 9 Science- Chapter Wise

 Chapter No. Chapter Name Chapter 2 Is Matter Around Us Pure Chapter 3 Atoms and Molecules Chapter 4 Structure of The Atom Chapter 5 The Fundamental Unit of Life Chapter 6 Tissues Chapter 7 Diversity in Living Organisms Chapter 8 Motion Chapter 9 Force and Laws of Motion Chapter 10 Gravitation Chapter 11 Work and Energy Chapter 12 Sound Chapter 13 Why Do We Fall ill? Chapter 14 Natural Resources Chapter 15 Improvement in Food Resources

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