Grade 6 Science: Chapter 1 Matter
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Questions and Answers

What is the smallest particle of a substance that can exist independently and has all the properties of that matter?

  • Compound
  • Molecule (correct)
  • Mass
  • Atom
  • Which of the following correctly describes the state of matter known as liquid?

  • Molecules are tightly packed and have a definite shape.
  • Molecules are fixed in place and cannot move.
  • Molecules are loosely packed and can flow. (correct)
  • Molecules are very loosely packed and can be compressed easily.
  • Which statement about the mass of a body is correct?

  • Mass changes when a substance changes state.
  • Mass varies depending on the location on Earth.
  • Mass is the same everywhere on Earth. (correct)
  • Mass is only relevant in solids.
  • What happens to most solids when they are heated?

    <p>They melt into liquid form.</p> Signup and view all the answers

    Which of the following is NOT a characteristic of gas?

    <p>Gases have a definite volume.</p> Signup and view all the answers

    Which description best represents the properties of gases?

    <p>Gases are loosely packed, occupy space, and can be compressed.</p> Signup and view all the answers

    How does the mass of a body change when taken to a different location on Earth?

    <p>It remains the same regardless of location.</p> Signup and view all the answers

    What happens to liquids when they are heated?

    <p>They evaporate and turn into gases.</p> Signup and view all the answers

    What characteristic defines solids compared to liquids and gases?

    <p>Solids have a definite shape and volume.</p> Signup and view all the answers

    Which statement is true about molecules in a solid state?

    <p>Molecules in solids are closely packed and vibrate in place.</p> Signup and view all the answers

    What is the primary difference between the molecular arrangement in solids and gases?

    <p>Molecules in solids are closely packed and not free to move, while in gases they are very loosely packed and far apart.</p> Signup and view all the answers

    Which statement correctly describes the behavior of liquids compared to solids?

    <p>Liquids take the shape of their container and have a definite volume.</p> Signup and view all the answers

    What can be inferred about the properties of matter in general?

    <p>Matter exists only if it has both mass and occupies space.</p> Signup and view all the answers

    Which example represents matter in gaseous form?

    <p>Smoke released from a fire.</p> Signup and view all the answers

    How do molecules in gases differ from those in liquids when subjected to heat?

    <p>Molecules in gases can be compressed, while those in liquids cannot.</p> Signup and view all the answers

    Study Notes

    Definition of Matter

    • Matter is any substance that occupies space and has mass.
    • Key properties include having mass or weight and occupying space.

    Mass of Matter

    • Mass is the quantity of matter in a body and remains consistent regardless of location on Earth.

    Composition of Matter

    • Matter is composed of tiny, invisible particles known as atoms.
    • Atoms combine to form molecules, which are the smallest independent units of a substance that possess all properties of that matter.

    States of Matter

    Solid

    • Molecules in solids are closely and tightly packed, restricting movement.
    • Solids have a definite shape and volume.
    • Most solids can transition to liquid form when heated (e.g., ice, iron, wax, lead).

    Liquid

    • Molecules in liquids are loosely packed, allowing for movement within the liquid.
    • Liquids flow from higher levels to lower levels and do not have a definite shape, conforming to the shape of their container.
    • They possess a definite volume and can change into gas when heated (e.g., water, oil, petrol, milk).

    Gas

    • Molecules in gases are very loosely packed and spaced far apart.
    • Gases have neither definite shape nor volume, filling any available space.
    • Gases can be compressed into smaller volumes (e.g., water vapor, air, smoke).

    Definition of Matter

    • Matter is any substance that occupies space and has mass.
    • Key properties include having mass or weight and occupying space.

    Mass of Matter

    • Mass is the quantity of matter in a body and remains consistent regardless of location on Earth.

    Composition of Matter

    • Matter is composed of tiny, invisible particles known as atoms.
    • Atoms combine to form molecules, which are the smallest independent units of a substance that possess all properties of that matter.

    States of Matter

    Solid

    • Molecules in solids are closely and tightly packed, restricting movement.
    • Solids have a definite shape and volume.
    • Most solids can transition to liquid form when heated (e.g., ice, iron, wax, lead).

    Liquid

    • Molecules in liquids are loosely packed, allowing for movement within the liquid.
    • Liquids flow from higher levels to lower levels and do not have a definite shape, conforming to the shape of their container.
    • They possess a definite volume and can change into gas when heated (e.g., water, oil, petrol, milk).

    Gas

    • Molecules in gases are very loosely packed and spaced far apart.
    • Gases have neither definite shape nor volume, filling any available space.
    • Gases can be compressed into smaller volumes (e.g., water vapor, air, smoke).

    Definition of Matter

    • Matter is any substance that occupies space and has mass.
    • Key properties include having mass or weight and occupying space.

    Mass of Matter

    • Mass is the quantity of matter in a body and remains consistent regardless of location on Earth.

    Composition of Matter

    • Matter is composed of tiny, invisible particles known as atoms.
    • Atoms combine to form molecules, which are the smallest independent units of a substance that possess all properties of that matter.

    States of Matter

    Solid

    • Molecules in solids are closely and tightly packed, restricting movement.
    • Solids have a definite shape and volume.
    • Most solids can transition to liquid form when heated (e.g., ice, iron, wax, lead).

    Liquid

    • Molecules in liquids are loosely packed, allowing for movement within the liquid.
    • Liquids flow from higher levels to lower levels and do not have a definite shape, conforming to the shape of their container.
    • They possess a definite volume and can change into gas when heated (e.g., water, oil, petrol, milk).

    Gas

    • Molecules in gases are very loosely packed and spaced far apart.
    • Gases have neither definite shape nor volume, filling any available space.
    • Gases can be compressed into smaller volumes (e.g., water vapor, air, smoke).

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    Description

    Explore the fundamental concepts of matter in this Grade 6 chapter. Understand the properties of matter, such as mass and volume, and learn about the particles that make up matter, including atoms and molecules. This quiz will help reinforce your knowledge of these essential scientific concepts.

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