S.S.D GIRLS COLLEGE OF EDUCATION
Subject: ScienceTopic: Matter Around Us.
Submitted to: - Submitted by: -
Dr. Sapna Setia Jaspreet Kaur
52884
DEFINITION……..
Matter:- anything which occupies some space and have some mass is called matter.M
AT
TER
SOLID1. Solids feels hard.2. Solids are rigid and
can’t be compressed.3. Solids have definite
volume.4. Solids have definite
shape.5. Intermolecular space
is least.
MA
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ARRANGEMENT OF ATOMS IN
SOLIDSAtoms are tightly packed in solids and intermolecular space is least.
So they can’t move.
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LIQUIDS1. They are slippery and feels
wet.
2. They are not rigid can be
compressed to a little extent.
3. Liquid have definite volume.
4. Liquids take the shape of the
container in which they are
placed.
5. Intermolecular space
between the atoms is more
then solids.
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ARRANGEMENT OF ATOMS IN
LIQUIDS1. Intermolecular space between
atoms is grater then solids.
So they can flow.
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GASES1. Gases are invisible.2. They are not rigid and
can be easily compressed.
3. Gases have neither definite volume nor fixed shape.
4. Gases can flow in all directions.
5. Intermolecular spaces between atoms is maximum.
MA
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Ans: As in solids intermolecular space is least and atoms are tightly packed so, they can’t move. But in liquids intermolecular spaces between the atoms is more then the solids. So, they can move randomly and can flow. Now in gases intermolecular space between atoms is maximum So, they can vibrate around their position easily and that is why gases can freely move.
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Ans: Water is a substance which can exist in all the three states of matter.
1. Water --- Liquid ----
2. Ice --- Solid ----
3. Vapour ---- Gas -----MA
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