What are the three most common states of matter?

The three most common states of matter are SOLID, LIQUID, and GAS. ASVAB General Science covers states of matter. SOLID (definite shape and volume — particles tightly packed); LIQUID (definite volume, takes the container's shape — particles flow); GAS (no definite shape or volume — particles spread out). A fourth state, PLASMA, exists at very high energy (like in stars). Matter changes states through heating/cooling (melting, freezing, evaporation, condensation). The three basic states are fundamental, commonly tested chemistry knowledge.