States of Matter

Match the particle diagrams to the correct state of matter (solid, liquid, or gas). Solid B Liquid A Gas C Phase changes Fill in the blanks with the phase and phase changes. solid liquid gas melting freezing vaporization condensation Determine if the phrases describe a solid, liquid, or gas. Solid Not fluid Not compressible Does not change shape in a container Rigid Definite shape and volume Most dense molecules vibrate molecules highly attracted to each other low energy Liquid Changes shape in a container-may not fill the entire container Particles can flow past one another Definite volume and indefinite shape medium energy medium density fluid and definite volume strong attraction between molecules Gas Volume is not definite Fluid and compressible Not rigid and least dense Particles can move about freely-collide with each other Indefinite volume and shape Changes shape in a container-will expand to fill the entire container Steam low attraction between molecules high energy Plasma almost no attraction between molecules conducts electricity molecules spread out and become charged no shape or volume rarely found on earth extremely high energy