Properties and phase changes of matter.ppt

Matter can exist in four states: solid, liquid, gas, and plasma. Solids have a definite shape and volume and particles are packed tightly together with little energy. Liquids take the shape of their container but have a definite volume, and particles are loosely packed with medium energy levels. Gases spread out to fill their entire container without a definite volume, and particles move freely with high energy. Plasma is similar to gas but with electrically charged particles and extremely high energy. The state of matter depends on the energy of its particles - adding energy causes particles to move faster and transition to less dense states, while removing energy has the opposite effect.