SPREAD # 01
“STATES OF MATTER”
SOLIDS, LIQUIDS AND GASES
States of matter are the different forms in which matter can exist
The three states of matter are solid, liquid and gas
SOLIDS LIQUIDS GASES
SHAPE Have a definite shape Take container’s shape Take container’s shape
VOLUME Particles have fixed Particles have fixed No fixed Volume
Volume Volume
MOTION Vibratory motion Particles move past Particles are mobile
one another
ARRANGEMENT Regularly arranged in a Random Motion Random Motion
lattice
FORCE BETWEEN Strong weak No/Very weak
PARTICLES
1.2. Changes of States
Boiling and Evaporation
Boiling and evaporation take in heat so are endothermic processes
Boiling and evaporation are processes that involve the conversion of a liquid into a gas.
Both processes allow molecules to move further apart from each other.
BOILING EVAPORATION
Happens at set temperature called boiling point Occurs at any temperature below the boiling
point
Occurs throughout the liquid Only occurs at surface
Faster than evaporation Slower than boiling
Bubbles form No bubbles form
CONDENSATION
Condensation is the process by which a gas converts into a liquid. It happens at the same temperature as
the boiling point
As temperature decreases, the energy of particles will decrease, making them move more
slowly.
Condensation and Freezing are both energy-given-out reactions, exothermic reaction.
“STATES OF MATTER”
SOLIDS, LIQUIDS AND GASES
States of matter are the different forms in which matter can exist
The three states of matter are solid, liquid and gas
SOLIDS LIQUIDS GASES
SHAPE Have a definite shape Take container’s shape Take container’s shape
VOLUME Particles have fixed Particles have fixed No fixed Volume
Volume Volume
MOTION Vibratory motion Particles move past Particles are mobile
one another
ARRANGEMENT Regularly arranged in a Random Motion Random Motion
lattice
FORCE BETWEEN Strong weak No/Very weak
PARTICLES
1.2. Changes of States
Boiling and Evaporation
Boiling and evaporation take in heat so are endothermic processes
Boiling and evaporation are processes that involve the conversion of a liquid into a gas.
Both processes allow molecules to move further apart from each other.
BOILING EVAPORATION
Happens at set temperature called boiling point Occurs at any temperature below the boiling
point
Occurs throughout the liquid Only occurs at surface
Faster than evaporation Slower than boiling
Bubbles form No bubbles form
CONDENSATION
Condensation is the process by which a gas converts into a liquid. It happens at the same temperature as
the boiling point
As temperature decreases, the energy of particles will decrease, making them move more
slowly.
Condensation and Freezing are both energy-given-out reactions, exothermic reaction.
