Class 9th Matter in Our Surroundings Handwritten Notes
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Questions and Answers

What are the characteristics of particles of matter according to the text?

  • Particles of matter have no spaces between them and do not move.
  • Particles of matter have spaces between them and are continuously moving. (correct)
  • Particles of matter do not attract each other and remain stationary.
  • Particles of matter repel each other and have fixed positions.

    • Which states of matter are discussed in the text?

  • The Solid State, The Liquid State, and The Condensed State
  • The Solid State, The Liquid State, and The Gaseous State (correct)
  • The Solid State, The Liquid State, and The Plasma State
  • The Solid State, The Gaseous State, and The Plasma State

    • What is matter based on chemical properties?

  • Solids, Liquids, and Gases
  • Atoms, Molecules, and Particles
  • Elements, Compounds, and Mixtures (correct)
  • Protons, Neutrons, and Electrons

    • What is the cooling effect due to according to the text?

    <p>Evaporation</p> Signup and view all the answers

    What is the definition of matter according to the text?

    <p>Anything that occupies space and has mass</p> Signup and view all the answers

    What can we infer from the fact that particles of one type of matter get into the spaces between particles of the other when making tea, coffee, or lemonade?

    <p>Particles of matter have enough space between them.</p> Signup and view all the answers

    What does the intermixing of particles of matter on their own demonstrate?

    <p>Particles of matter attract each other.</p> Signup and view all the answers

    Which of the following is considered as matter based on its physical properties and ability to occupy space and possess mass?

    <p>Lemon water</p> Signup and view all the answers

    What is the reason behind the smell of hot sizzling food reaching you several meters away?

    <p>Rate of diffusion increases with increasing temperature.</p> Signup and view all the answers

    What happens when a spoon of sugar is placed in a bowl filled with water and then placed on a gas burner?

    <p>The rate of diffusion increases.</p> Signup and view all the answers

    Study Notes

    Characteristics of Particles of Matter

    • Particles of matter have space between them
    • Particles of matter are in constant motion
    • Particles of matter attract each other

    States of Matter

    • Solids
    • Liquids
    • Gases

    Definition of Matter

    • Matter is anything that has mass and occupies space

    Matter based on Chemical Properties

    • Matter can be classified into elements, compounds, and mixtures based on its chemical properties

    Cooling Effect

    • The cooling effect is due to the evaporation of particles from the surface of an object into the air

    Properties of Matter

    • Matter can intermix and occupy space between particles of different types
    • Particles of matter can get into the spaces between particles of other matter

    Intermixing of Particles

    • The intermixing of particles of matter on their own demonstrates that particles are in constant motion and have space between them

    Classification of Matter

    • Matter can be classified based on its physical properties and ability to occupy space and possess mass

    Reason behind Smell of Hot Food

    • The reason behind the smell of hot sizzling food reaching you several meters away is due to the particles of the smell moving rapidly in the air and reaching your nose

    Dissolution of Sugar

    • When a spoon of sugar is placed in a bowl filled with water and then placed on a gas burner, the sugar dissolves and its particles get evenly distributed throughout the water.

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    Description

    Explore the characteristics and states of matter, as well as changes of states and the process of evaporation in this set of handwritten notes for class 9th Matter in Our Surroundings. Learn about the effects of temperature and pressure on states of matter and the cooling effect of evaporation.

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