Molecules in solid, liquid and gaseous state

Example: The substance water

Solid state (ice)

Molecules in contact, vibrating in a fixed position ( regular crystal lattice)

Liquid state (water)

Molecules en contact, vibrating and mobile

Gaseous state (water vapour)

Molecules far apart, vibrating intensively and fast-moving , collisions possible

Illustrations from the →   Musée Canadien de la Nature