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The particles in a gas are a long way apart. They move around very quickly. Gases are easy to squash because there is a lot of space between the particles.

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With liquids, the particles are still very close. But the forces holding them together are not as strong as in solids. The particles can move around. This is why you can pour a liquid. You cannot squash a liquid because the particles are still very close together.

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In solids, the particles are arranged in a regular pattern. They are held together by strong forces. This is why solids have a fixed shape. You cannot squash or change the volume of solids. The particles are already as close to each other as they can get.

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Properties of Solids, Liquids, and GasesAll materials are made of tiny particles. These are called atoms. Sometimes atoms join together to form molecules. Scientists talk about different materials by talking about these particles. They talk about how the atoms (or molecules) are arranged. This helps scientists explain solids, liquids, and gases.

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Properties of Solids, Liquids, and GasesAll materials are made of tiny particles. These are called atoms. Sometimes atoms join together to form molecules. Scientists talk about different materials by talking about these particles. They talk about how the atoms (or molecules) are arranged. This helps scientists explain solids, liquids, and gases.

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Colloidal particles are the components of a colloid. A colloid is a substance microscopically dispersed evenly throughout another substance.Such colloidal system can be solid, liquid, or gaseous; as well as continuous or dispersed. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanemeters

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Colloidal particles are the components of a colloid. A colloid is a substance microscopically dispersed evenly throughout another substance.Such colloidal system can be solid, liquid, or gaseous; as well as continuous or dispersed. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanemeters

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Both elementary (such as muons) and composite particles (such as uranium nuclei), are known to undergo particle decay. Those that do not are called stable particles, such as the electron or a helium-4 nucleus. The lifetime of stable particles can be either infinite or large enough to hinder attempts to observe such decays. In the latter case, those particles are called "observationally stable". In general, a particle decays from a high-energy state to a lower-energy state by emitting some form of radiation, such as the emission of photons.

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Both elementary (such as muons) and composite particles (such as uranium nuclei), are known to undergo particle decay. Those that do not are called stable particles, such as the electron or a helium-4 nucleus. The lifetime of stable particles can be either infinite or large enough to hinder attempts to observe such decays. In the latter case, those particles are called "observationally stable". In general, a particle decays from a high-energy state to a lower-energy state by emitting some form of radiation, such as the emission of photons.

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Particles can also be classified according to composition. Composite particles refer to particles that have composition – that is particles which are made of other particles.For example, a carbon-14 atom is made of six protons, eight neutrons, and six electrons. By contrast, elementary particles (also called fundamental particles) refer to particles that are not made of other particles.

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Particles can also be classified according to composition. Composite particles refer to particles that have composition – that is particles which are made of other particles.For example, a carbon-14 atom is made of six protons, eight neutrons, and six electrons. By contrast, elementary particles (also called fundamental particles) refer to particles that are not made of other particles.

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The term 'particle' is rather general in meaning, and is refined as needed by various scientific fields. Something that is composed of particles may be referred to as being particulate.However, the noun 'particulate' is most frequently used to refer to pollutants in the Earth's atmosphere, which are a suspension of unconnected particles, rather than a connected particle aggregation.

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The term 'particle' is rather general in meaning, and is refined as needed by various scientific fields. Something that is composed of particles may be referred to as being particulate.However, the noun 'particulate' is most frequently used to refer to pollutants in the Earth's atmosphere, which are a suspension of unconnected particles, rather than a connected particle aggregation.

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The concept of particles is particularly useful when modelling nature, as the full treatment of many phenomena can be complex and also involve difficult computation.[4] It can be used to make simplifying assumptions concerning the processes involved. Francis Sears and Mark Zemansky, in University Physics, give the example of calculating the landing location and speed of a baseball thrown in the air. They gradually strip the baseball of most of its properties, by first idealizing it as a rigid smooth sphere, then by neglecting rotation, buoyancy and friction, ultimately reducing the problem to the ballistics of a classical point particle.[5] The treatment of large numbers of particles is the realm of statistical physics.

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The concept of particles is particularly useful when modelling nature, as the full treatment of many phenomena can be complex and also involve difficult computation.[4] It can be used to make simplifying assumptions concerning the processes involved. Francis Sears and Mark Zemansky, in University Physics, give the example of calculating the landing location and speed of a baseball thrown in the air. They gradually strip the baseball of most of its properties, by first idealizing it as a rigid smooth sphere, then by neglecting rotation, buoyancy and friction, ultimately reducing the problem to the ballistics of a classical point particle.[5] The treatment of large numbers of particles is the realm of statistical physics.

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All of the information we have seen today will  be posted as a note on the webpage.  Today's  homework is to go online and print that note.   The note should then be stored in your binder.   This information will be used for the rest of  grade 7 science, for grade 8 science, and the  rest of your scientific career.

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MORE INFO                               The particles are  atoms, molecules or ions. Use of the general term 'particle' means the precise nature of the particles does not have to be specified.Particle theory helps to explain properties and behaviour of materials by providing a model which enables us to visualise what is happening on a very small scale inside those materials. As a model it is useful because it appears to explain many phenomena but as with all models it does have limitations.

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MORE INFO                               The particles are  atoms, molecules or ions. Use of the general term 'particle' means the precise nature of the particles does not have to be specified.Particle theory helps to explain properties and behaviour of materials by providing a model which enables us to visualise what is happening on a very small scale inside those materials. As a model it is useful because it appears to explain many phenomena but as with all models it does have limitations.

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A scientific model of the structure of matter; according to the particletheory, all matter is  made up of
extremely, tiny particles, and each pure substance has its own kind of particle, different from the particle from any other pure substance.

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Kinetic particle theory ,The kinetic particle theory explains the properties of the different states of matter. The particles in solids, liquids and gases have different amounts of energy. They are arranged differently and move in different ways.The table summarises the arrangement and movement of the particles in solids, liquids and gases, and shows simple diagrams for the arrangement of these particles.

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Kinetic particle theory ,The kinetic particle theory explains the properties of the different states of matter. The particles in solids, liquids and gases have different amounts of energy. They are arranged differently and move in different ways.The table summarises the arrangement and movement of the particles in solids, liquids and gases, and shows simple diagrams for the arrangement of these particles.

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The particle theory of matter is: A scientific model of the structure of matter; according to the particle  theory, all matter is made up of extremely tiny particles, and each pure  substance has its own kind of particle, different from the particles from  any other pure substance. There are five main points to the particle theory: 1. All matter is made up of particles 2. All particles in a pure substance are identical (no two different  pure substances have the same particles) 3. All particles have space between them 4. All particles are always moving – more energy (heat) produces  more movement 5. All particles are attracted to one another

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Particle Theory are made up of tiny  atoms that come in many shapes and sizes.Atoms are in every piece of matter,Example:-Gold,Silver,Aluminium,and Organism.Particle Theory are found in every thing on earth because Particle Theory is matter.

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The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles in which are constantly moving or in a continual state of motion. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles