SEARCH Articles Figures Tables CHEMICAL AND PHYSICAL TRANSFORMATIONS OF MATTER Changes in Matter Is It Physical or Chemical Classical Physics Does Not Adequately Describe the Interaction of Light with Matter Condensed-matter physics How We Tell Different Kinds of Matter Apart Physical and Chemical Properties Matter Physical State and Chemical Constitution Matter physical change Matter physical properties Matter physical states Matter ultimate physical atom Phases and Physical States of Matter Physical and Chemical Properties of Matter Physical chemistry subject matter Physical properties of matter Physical states of matter Physical transformations of matter Quantum physics matter, nature