SOLID, LIQUID AND GAS

DIGITAL LIBRARY OF GLT SARASWATI BAL MANDIR, NEHRU NAGAR.

1. Solids, Liquids and GasesSolids, Liquids and Gases

2. By the end of this lesson you will By the end of this lesson you will
know: know:
what a ‘material’ iswhat a ‘material’ is
what we mean by ‘property’ what we mean by ‘property’
what the properties of solids, liquids and what the properties of solids, liquids and
gases aregases are

3. Materials Materials
Everything is made from some sort of Everything is made from some sort of
‘material’‘material’
Materials are made up of lots and lots of Materials are made up of lots and lots of
tiny pieces tiny pieces
These tiny pieces are known as particlesThese tiny pieces are known as particles
Solids, liquids and gases are all made of Solids, liquids and gases are all made of
lots of particles lots of particles

4. Properties Properties
The property of a material tells us The property of a material tells us
something about what it is like…something about what it is like…
Materials may be hard, soft, shiny, roughMaterials may be hard, soft, shiny, rough
Can you think of any more? Can you think of any more?

5. Solids Solids
A solid is something that we can hold on A solid is something that we can hold on
toto
A solid keeps its shape, unless we cut it or A solid keeps its shape, unless we cut it or
shape it ourselves shape it ourselves
In a solid, all of the particles are packed In a solid, all of the particles are packed
together very tightlytogether very tightly

6. Liquids Liquids
Liquids are runnyLiquids are runny
They can be poured They can be poured
The particles are less tightlyThe particles are less tightly
packed, so they can move about packed, so they can move about
If poured from one containerIf poured from one container
to another, they will take the to another, they will take the
shape of their new containershape of their new container

7. Gases Gases
The particles in gases have lots of room to The particles in gases have lots of room to
move move
Gases are all around us Gases are all around us
They spread into all of the empty places They spread into all of the empty places
they can they can
Most are invisible Most are invisible

8. An example – water An example – water
Water can be a solid, a Water can be a solid, a
liquid or a gasliquid or a gas
When it is cold it is When it is cold it is
solid – ICE solid – ICE
When it is at room When it is at room
temperature it is a temperature it is a
liquid – WATERliquid – WATER
When it is hot it is a When it is hot it is a
gas – STEAM gas – STEAM

9. THANK YOUTHANK YOU
PERSENTED BY :PAWAN MEENAPERSENTED BY :PAWAN MEENA
CLASS: IX th (F)CLASS: IX th (F)

10. THANK YOUTHANK YOU
PERSENTED BY :PAWAN MEENAPERSENTED BY :PAWAN MEENA
CLASS: IX th (F)CLASS: IX th (F)