H
OH
H
H
O
H
OH
H
OH
O
H
H
Gaseous H2O molecules(water vapor)
Liquid H2O molecules (water)
Solid H2O molecules (ice)
O
H
H
H
H
O
H
O
H
H
OH
O
H
H
H
H
O
H
OH
H
OH
H
H
OO
H
H
H
H
O
H
H
O
H
H
O
Molecules in a solid are close to each other.They form a rigid structure and are not able to movearound each other. Solids often form crystals.
Solid
Molecules in a gas are far apart from each other.They are very energetic and move quickly by each other.
Gas
Molecules in a liquid are close together.They can move easily around each other.
Liquid
H
OH
O
H
H
H
OH
H
O
H
H
OH
O
H
HH
OH
H
OH
H
O
H
H
OH
O
H
H
H
OH
H
OH
H
OH
O
H
H
H
OH
H
OH
H
OH
H
OH
Three Physical Statesof Matter
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