Matching Pairs Physical and Chemical ChangesOnline version Study material over physical and chemical changes. by Cambria Crabtree 1 Density, boiling point, melting point, solubility 2 Chemical change 3 Physical change example from a chemical equation 4 Light, heat, sound 5 Liquid 6 Physical change 7 Elements, soil, gases, air, celestial objects 8 Chemical change example from a chemical equation 9 Flame appears 10 Gas 11 Solid Breaks bonds and forms new substances. Examples of energy X + Y --> XY A + Z --> A + Z Particles are close together, takes shape of the container, particles slide past each other. Physical Properties of matter Does not re-arrange the atoms or break bonds. Examples of matter Particles vibrate, particles tightly packed together, holds shape, particles lock in position. Chemical property Particles are far apart, fills the space the gas is in, particles move around freely