PPT: Particular Nature of Matter | Science Curiosity Class 8 - New NCERT PDF Download

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Particulate Nature of Matter
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Particulate Nature of Matter
What Is Matter Composed of?
Extremely Small Particles
The constituent particles of matter, like those in
sugar, are incredibly tiny—so small that they cannot
be seen even with an ordinary microscope.
Occupying Interparticle Spaces
When sugar dissolves in water, its particles separate
and fill the spaces between water particles. This is
detected by taste, even if the particles are invisible.
Page 3


Particulate Nature of Matter
What Is Matter Composed of?
Extremely Small Particles
The constituent particles of matter, like those in
sugar, are incredibly tiny—so small that they cannot
be seen even with an ordinary microscope.
Occupying Interparticle Spaces
When sugar dissolves in water, its particles separate
and fill the spaces between water particles. This is
detected by taste, even if the particles are invisible.
What Decides Different States of
Matter?
The physical state of matter is determined by the strength
of attractive forces between particles.
Interparticle Attractions
Constituent particles of
matter are held together
by attractive forces called
interparticle attractions.
Distance Matters
The strength of these
attractions depends on the
nature of the substance
and the distance between
particles.
Physical State
Even a slight increase in distance drastically decreases
the attractive forces, ultimately determining the physical
state of the substance.
Page 4


Particulate Nature of Matter
What Is Matter Composed of?
Extremely Small Particles
The constituent particles of matter, like those in
sugar, are incredibly tiny—so small that they cannot
be seen even with an ordinary microscope.
Occupying Interparticle Spaces
When sugar dissolves in water, its particles separate
and fill the spaces between water particles. This is
detected by taste, even if the particles are invisible.
What Decides Different States of
Matter?
The physical state of matter is determined by the strength
of attractive forces between particles.
Interparticle Attractions
Constituent particles of
matter are held together
by attractive forces called
interparticle attractions.
Distance Matters
The strength of these
attractions depends on the
nature of the substance
and the distance between
particles.
Physical State
Even a slight increase in distance drastically decreases
the attractive forces, ultimately determining the physical
state of the substance.
Solid State
In solids, particles are tightly
packed in fixed positions, held by
strong attractive forces. 
When solids are heated, these
particles absorb energy and
vibrate more vigorously within their
fixed positions.
Page 5


Particulate Nature of Matter
What Is Matter Composed of?
Extremely Small Particles
The constituent particles of matter, like those in
sugar, are incredibly tiny—so small that they cannot
be seen even with an ordinary microscope.
Occupying Interparticle Spaces
When sugar dissolves in water, its particles separate
and fill the spaces between water particles. This is
detected by taste, even if the particles are invisible.
What Decides Different States of
Matter?
The physical state of matter is determined by the strength
of attractive forces between particles.
Interparticle Attractions
Constituent particles of
matter are held together
by attractive forces called
interparticle attractions.
Distance Matters
The strength of these
attractions depends on the
nature of the substance
and the distance between
particles.
Physical State
Even a slight increase in distance drastically decreases
the attractive forces, ultimately determining the physical
state of the substance.
Solid State
In solids, particles are tightly
packed in fixed positions, held by
strong attractive forces. 
When solids are heated, these
particles absorb energy and
vibrate more vigorously within their
fixed positions.
Liquid State
When a liquid is heated to its
boiling point, particles gain
enough energy to overcome
attractive forces and escape
into the gaseous state.
Liquids take the shape of their
container while maintaining a
constant volume.