The study of matter ‐ whatever the state ‐ is exciting. It is not all about fundamental or great changes at a particle or molecular level. Consider, floating of ice shelf on water, for instance. Why do you think it happens? Well, it is because of the structure and angle between the hydrogen and water molecules (to know in detail read upon the theme in inside pages) that allows for the ice to occupy larger volume of water than same amount of liquid water ‐ making ice less dense and able to stay afloat on water.
The open structure of water molecules (plenty of space between atoms) and regular pattern of lattice array is also responsible for the beautiful patterns found in a snowflake. The little changes like an angle, an array, or arrangement of particles can make ice to float on water instead of dropping down and freezing the ocean floor. Imagine, what a turn of event that would have been? It is these subtle changes (Hydrogen bond) that also determined the structure of the basic molecule of life: DNA.
The basics are simple but the complexity of molecules that can be built in accordance with simple rules is astonishing.